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    <!-- ===== HEADER ===== -->
    <h1>πŸ“ The Trinity as a Necessary Structure of a Monistic Modal Ontology <span class="version-badge">Version 4 – Complete Analysis</span></h1>
    <div class="subhead">
        An interactive tutorial – Step by step<br>
        <a href="index.html">← Back to the entry page</a> |
        <a href="modal4eng.pdf">πŸ“„ PDF of the treatise</a>
    </div>

    <!-- ===== PROGRESS ===== -->
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        <div class="fill" id="progressFill" style="width: 0%;"></div>
    </div>
    <div class="progress-text" id="progressText">Step 0 of 24</div>

    <!-- ===== STEPS ===== -->
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        <span id="stepIndicator" style="font-size:0.85rem; color:#8b8b8b;">0 / 24</span>
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    <!-- ===== FOOTER ===== -->
    <div style="margin-top: 2.5rem; padding-top: 1rem; border-top: 1px solid #e0d6c8; font-size: 0.75rem; color: #8b8b8b; text-align: center;">
        <p>Β© Paul Koop – <a href="index.html" style="color: #2a6b4f;">the-last-freedom.org/Projekt_Pompeji</a></p>
        <p style="margin-top:0.2rem;">Version 4 combines the proof of non-derivability in pure S5 with the proof in the extended system S5+SP.</p>
    </div>

</div>

<script>
    // ================================================================
    //  DATA: 24 steps for Version 4 – ENGLISH
    // ================================================================

    const steps = [
        // ============================================================
        //  PART 0: INTRODUCTION (Steps 0–4)
        // ============================================================
        {
            id: 0,
            title: "What is the goal of Version 4?",
            part: "Introduction",
            explanation: `
                <p><strong>Version 4</strong> unites insights from all previous versions:</p>
                <ul>
                    <li><strong>Versions 1–3:</strong> Attempt to derive the Trinity directly from S5 – failed due to missing bridge.</li>
                    <li><strong>Version 4 (old):</strong> Proof that pure S5 is insufficient.</li>
                    <li><strong>Version 5:</strong> Formalization of the superposition intuition.</li>
                </ul>
                <p><strong>Version 4 (new)</strong> unites both perspectives:</p>
                <ol>
                    <li><strong>Part I:</strong> Non-derivability in pure S5.</li>
                    <li><strong>Part II:</strong> Proof in the extended system S5+SP.</li>
                    <li><strong>Part III:</strong> Metatheoretical classification.</li>
                </ol>
                <div class="formula-box important">S5 &not;&vdash; β–‘βˆ€xTr(x) &nbsp;&nbsp;but&nbsp;&nbsp; S5+SP &vdash; β–‘βˆ€xTr(x)</div>
            `,
            question_html: `
                <p><strong>What is the main goal of Version 4?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q0" value="0"> Prove the Trinity directly from S5.</label>
                    <label><input type="radio" name="q0" value="1"> Show that S5 is insufficient and prove the Trinity in S5+SP.</label>
                    <label><input type="radio" name="q0" value="2"> Prove that the Trinity is impossible.</label>
                    <label><input type="radio" name="q0" value="3"> Use only two axioms.</label>
                    <label><input type="radio" name="q0" value="4"> Show that the Trinity is an illusion.</label>
                    <label><input type="radio" name="q0" value="5"> Prove the existence of God.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 1,
            title: "The Basic Axioms (A1, A4, A11, A12)",
            part: "Introduction",
            explanation: `
                <p>The treatise uses <strong>four basic axioms</strong>:</p>
                <ul>
                    <li><strong>A1 – Monism:</strong> <span class="symbol">β–‘Β¬βˆƒxβˆƒy FundamentallySeparated(x,y)</span></li>
                    <li><strong>A4 – Existence of a World:</strong> <span class="symbol">β—‡βˆƒw World(w)</span></li>
                    <li><strong>A11 – Transcendental Bridge:</strong> <span class="symbol">βˆ€w (WorldSeparatedFromConsciousness(w) ↔ Β¬βˆƒc(Consciousness(c)∧c(w)))</span></li>
                    <li><strong>A12 – Experience ↔ Realization:</strong> <span class="symbol">βˆ€p. Experienceable(p) ↔ βˆƒw. Realized(w,p)</span></li>
                </ul>
                <p>Plus the <strong>three implications of the cases</strong> (A13, A14, A15):</p>
                <div class="formula-box">A13 := β–‘βˆ€x(T(x)β†’U(x)) &nbsp;&nbsp; A14 := β–‘βˆ€x(U(x)β†’S(x)) &nbsp;&nbsp; A15 := β–‘βˆ€x(S(x)β†’T(x))</div>
            `,
            question_html: `
                <p><strong>How many basic axioms does the treatise use?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q1" value="0"> Two</label>
                    <label><input type="radio" name="q1" value="1"> Three</label>
                    <label><input type="radio" name="q1" value="2"> Four</label>
                    <label><input type="radio" name="q1" value="3"> Five</label>
                    <label><input type="radio" name="q1" value="4"> Six</label>
                    <label><input type="radio" name="q1" value="5"> Seven</label>
                </div>
            `,
            answer: 2
        },
        {
            id: 2,
            title: "Definition of the Limit Structure (T, U, S, Tr)",
            part: "Introduction",
            explanation: `
                <p><strong>Totality T</strong> is defined as a well-founded, open interval:</p>
                <div class="formula-box">T := { x | U &lt; x &lt; S }</div>
                <p><strong>Origin U</strong> and <strong>Self-Knowledge S</strong> are the limits:</p>
                <div class="formula-box">U := lim inf T &nbsp;&nbsp;–&nbsp;&nbsp; S := lim sup T</div>
                <p>The <strong>Trinity</strong> is the unity of these three limits:</p>
                <div class="formula-box important">Tr := U ∧ T ∧ S</div>
                <p>The three concepts are <strong>not substances</strong>, but <strong>perspectives</strong> on the same reality.</p>
            `,
            question_html: `
                <p><strong>What does Tr := U ∧ T ∧ S mean?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q2" value="0"> The Trinity is true if at least one concept is true.</label>
                    <label><input type="radio" name="q2" value="1"> The Trinity is true if all three concepts are true simultaneously.</label>
                    <label><input type="radio" name="q2" value="2"> The Trinity is the same as Totality.</label>
                    <label><input type="radio" name="q2" value="3"> The Trinity is the same as Origin.</label>
                    <label><input type="radio" name="q2" value="4"> The Trinity is the same as Self-Knowledge.</label>
                    <label><input type="radio" name="q2" value="5"> The Trinity is an illusion.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 3,
            title: "The Three Cases of Reductio ad absurdum",
            part: "Introduction",
            explanation: `
                <p>The treatise uses a <strong>Reductio ad absurdum</strong>. The assumption is:</p>
                <div class="formula-box">Β¬Tr &nbsp;&nbsp;≑&nbsp;&nbsp; Β¬(U ∧ T ∧ S)</div>
                <p>By de Morgan:</p>
                <div class="formula-box">¬U ∨ ¬T ∨ ¬S</div>
                <p>So there are <strong>three cases</strong>:</p>
                <ol>
                    <li><strong>Case 1:</strong> <span class="symbol">T ∧ Β¬U</span> – Totality without Origin</li>
                    <li><strong>Case 2:</strong> <span class="symbol">U ∧ Β¬S</span> – Origin without Self-Knowledge</li>
                    <li><strong>Case 3:</strong> <span class="symbol">S ∧ Β¬T</span> – Self-Knowledge without Totality</li>
                </ol>
            `,
            question_html: `
                <p><strong>Which three cases are examined in the Reductio?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q3" value="0"> T∧¬U, U∧¬S, S∧¬T</label>
                    <label><input type="radio" name="q3" value="1"> U∧¬T, T∧¬S, S∧¬U</label>
                    <label><input type="radio" name="q3" value="2"> ¬U∧¬T, ¬T∧¬S, ¬S∧¬U</label>
                    <label><input type="radio" name="q3" value="3"> T∧U, U∧S, S∧T</label>
                    <label><input type="radio" name="q3" value="4"> ¬T∧¬U, ¬U∧¬S, ¬S∧¬T</label>
                    <label><input type="radio" name="q3" value="5"> T∧¬S, U∧¬T, S∧¬U</label>
                </div>
            `,
            answer: 0
        },
        {
            id: 4,
            title: "Proof of the Existence of T",
            part: "Introduction",
            explanation: `
                <p><strong>Theorem:</strong> Totality T exists.</p>
                <p><strong>Proof:</strong></p>
                <ol>
                    <li>From A4: <span class="symbol">β—‡βˆƒw World(w)</span>.</li>
                    <li>In S5, there is a possible world <span class="symbol">wβ‚€</span>.</li>
                    <li>In <span class="symbol">wβ‚€</span>, there is at least one realized state <span class="symbol">x</span>.</li>
                    <li>The set of all realized states is non-empty.</li>
                    <li>T is the set of all realized states.</li>
                    <li><strong>Therefore T exists.</strong></li>
                </ol>
                <div class="formula-box">βˆƒT</div>
            `,
            question_html: `
                <p><strong>What follows from A4 for the existence of T?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q4" value="0"> T does not exist.</label>
                    <label><input type="radio" name="q4" value="1"> T exists because there is at least one realized possibility.</label>
                    <label><input type="radio" name="q4" value="2"> T is empty.</label>
                    <label><input type="radio" name="q4" value="3"> T is impossible.</label>
                    <label><input type="radio" name="q4" value="4"> T is the same as U.</label>
                    <label><input type="radio" name="q4" value="5"> T is the same as S.</label>
                </div>
            `,
            answer: 1
        },

        // ============================================================
        //  PART I: NON-DERIVABILITY IN PURE S5 (Steps 5–11)
        // ============================================================
        {
            id: 5,
            title: "PART I – Goal: Non-Derivability in Pure S5",
            part: "Part I",
            explanation: `
                <div style="background:#f8d7da; padding:0.5rem 1rem; border-radius:6px; margin-bottom:1rem;">
                    <span class="part-tag p1">PART I</span>
                    <strong>Goal:</strong> Show that the Trinity is <strong>not</strong> derivable in pure S5.
                </div>
                <div class="formula-box red">S5 &not;&vdash; β–‘βˆ€xTr(x)</div>
                <p><strong>Method:</strong> We construct an <strong>open S5 tableau</strong> for the negation of the target formula.</p>
                <p>According to the <strong>soundness and completeness theorem</strong> of the S5 tableau calculus:</p>
                <div class="formula-box" style="background:#f5f0ea;">A set of formulas is S5-satisfiable exactly when the tableau has an open branch.</div>
                <p>If the tableau remains open, there exists an S5 model that satisfies all axioms but makes the target formula false.</p>
            `,
            question_html: `
                <p><strong>What is the goal of Part I?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q5" value="0"> To prove the Trinity in S5.</label>
                    <label><input type="radio" name="q5" value="1"> To show that the Trinity is not derivable in S5.</label>
                    <label><input type="radio" name="q5" value="2"> To introduce the superposition axioms.</label>
                    <label><input type="radio" name="q5" value="3"> To prove the existence of God.</label>
                    <label><input type="radio" name="q5" value="4"> To show that S5 is contradictory.</label>
                    <label><input type="radio" name="q5" value="5"> To expose the Trinity as an illusion.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 6,
            title: "The Tableau – Assumption and First Decomposition",
            part: "Part I",
            explanation: `
                <p>The tableau begins with the assumption of the negation of the target formula:</p>
                <div class="tableau">
1.  Β¬β–‘βˆ€x Tr(x)                                    [Assumption]
2.  β—‡Β¬βˆ€x Tr(x)                                    [1, Β¬β–‘-rule]
3.  Β¬βˆ€x Tr(x) @ w0                                [2, β—‡-rule]
4.  βˆƒx Β¬Tr(x) @ w0                                [3, Β¬βˆ€-rule]
5.  Β¬Tr(a) @ w0                                   [4, βˆƒ-rule: a new]
6.  ¬(T(a) ∧ U(a) ∧ S(a)) @ w0                    [5, Tr-definition]

    β†’ Ξ²-rule on 6:
    6a. Β¬T(a) @ w0
    6b. Β¬U(a) @ w0
    6c. Β¬S(a) @ w0
                </div>
                <p>We obtain <strong>three branches</strong>, each representing one of the three cases.</p>
            `,
            question_html: `
                <p><strong>Where does the Ξ²-rule on step 6 lead?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q6" value="0"> To a single branch.</label>
                    <label><input type="radio" name="q6" value="1"> To three branches: Β¬T(a), Β¬U(a), Β¬S(a).</label>
                    <label><input type="radio" name="q6" value="2"> To two branches.</label>
                    <label><input type="radio" name="q6" value="3"> The tableau closes immediately.</label>
                    <label><input type="radio" name="q6" value="4"> There is no branch.</label>
                    <label><input type="radio" name="q6" value="5"> A contradiction arises.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 7,
            title: "Tableau – Branch 6a: Β¬T(a)",
            part: "Part I",
            explanation: `
                <p><strong>Branch 6a:</strong> <span class="symbol">Β¬T(a) @ w0</span></p>
                <div class="tableau">
<span class="green">─── BRANCH 6a: Β¬T(a) @ w0 ───</span>

7.  β–‘βˆ€x(S(x) β†’ T(x)) @ w0                         [A15]
8.  βˆ€x(S(x) β†’ T(x)) @ w0                          [7, β–‘-rule]
9.  S(a) β†’ T(a) @ w0                              [8, βˆ€-rule]

    β†’ Ξ²-rule on 9:
    9a. Β¬S(a) @ w0
    9b. T(a) @ w0                                  <span class="red">[Contradiction with 6a β†’ closes]</span>

    Thus: 9a. Β¬S(a) @ w0

10. β–‘βˆ€x(T(x) β†’ U(x)) @ w0                         [A13]
11. βˆ€x(T(x) β†’ U(x)) @ w0                          [10, β–‘-rule]
12. T(a) β†’ U(a) @ w0                              [11, βˆ€-rule]

    β†’ Ξ²-rule on 12:
    12a. Β¬T(a) @ w0                                [already in 6a]
    12b. U(a) @ w0                                 [no contradiction]

    β†’ Choose branch 12a (consistent).

13. β–‘βˆ€x(U(x) β†’ S(x)) @ w0                         [A14]
14. βˆ€x(U(x) β†’ S(x)) @ w0                          [13, β–‘-rule]
15. U(a) β†’ S(a) @ w0                              [14, βˆ€-rule]

    β†’ Ξ²-rule on 15:
    15a. Β¬U(a) @ w0
    15b. S(a) @ w0                                 <span class="red">[Contradiction with 9a β†’ closes]</span>

    Thus: 15a. Β¬U(a) @ w0

    β†’ Hence: Β¬T(a), Β¬U(a), Β¬S(a) @ w0.
    β†’ <span class="hl">This is consistent – no contradiction.</span>
                </div>
            `,
            question_html: `
                <p><strong>What does Branch 6a show?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q7" value="0"> A contradiction arises.</label>
                    <label><input type="radio" name="q7" value="1"> Β¬T(a), Β¬U(a), Β¬S(a) are consistent.</label>
                    <label><input type="radio" name="q7" value="2"> The branch closes immediately.</label>
                    <label><input type="radio" name="q7" value="3"> Tr(a) follows.</label>
                    <label><input type="radio" name="q7" value="4"> The branch is impossible.</label>
                    <label><input type="radio" name="q7" value="5"> A contradiction with A1 follows.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 8,
            title: "Tableau – Branches 6b and 6c",
            part: "Part I",
            explanation: `
                <p><strong>Branch 6b:</strong> <span class="symbol">Β¬U(a) @ w0</span></p>
                <div class="tableau">
<span class="green">─── BRANCH 6b: Β¬U(a) @ w0 ───</span>

16. β–‘βˆ€x(T(x) β†’ U(x)) @ w0                         [A13]
17. βˆ€x(T(x) β†’ U(x)) @ w0                          [16, β–‘-rule]
18. T(a) β†’ U(a) @ w0                              [17, βˆ€-rule]

    β†’ Ξ²-rule on 18:
    18a. Β¬T(a) @ w0
    18b. U(a) @ w0                                 <span class="red">[Contradiction with 6b β†’ closes]</span>

    Thus: 18a. Β¬T(a) @ w0

19. β–‘βˆ€x(S(x) β†’ T(x)) @ w0                         [A15]
20. βˆ€x(S(x) β†’ T(x)) @ w0                          [19, β–‘-rule]
21. S(a) β†’ T(a) @ w0                              [20, βˆ€-rule]

    β†’ Ξ²-rule on 21:
    21a. Β¬S(a) @ w0
    21b. T(a) @ w0                                 <span class="red">[Contradiction with 18a β†’ closes]</span>

    Thus: 21a. Β¬S(a) @ w0

    β†’ Consistent: Β¬U(a), Β¬T(a), Β¬S(a) @ w0.
                </div>
                <p><strong>Branch 6c</strong> (<span class="symbol">Β¬S(a) @ w0</span>) also leads to <span class="symbol">Β¬T(a), Β¬U(a), Β¬S(a) @ w0</span>.</p>
                <p><strong>All three branches are consistent.</strong></p>
            `,
            question_html: `
                <p><strong>What is the result of all three branches?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q8" value="0"> All three branches close with a contradiction.</label>
                    <label><input type="radio" name="q8" value="1"> All three branches are consistent with Β¬T(a), Β¬U(a), Β¬S(a).</label>
                    <label><input type="radio" name="q8" value="2"> Only branch 6a is consistent.</label>
                    <label><input type="radio" name="q8" value="3"> Only branch 6b is consistent.</label>
                    <label><input type="radio" name="q8" value="4"> Only branch 6c is consistent.</label>
                    <label><input type="radio" name="q8" value="5"> None of the branches are consistent.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 9,
            title: "The Remaining Axioms (A4, A11, A12)",
            part: "Part I",
            explanation: `
                <p>The remaining axioms lead to <strong>new worlds</strong>, but <strong>not back to w0</strong>:</p>
                <div class="tableau">
34. β—‡βˆƒw World(w) @ w0                              [A4]
35. βˆƒw World(w) @ w1                               [34, β—‡-rule, w1 new]
    β†’ Leads to new world w1, but not back to w0.

36. A11, A12: No instances in w0 that force T(a), U(a), or S(a).
                </div>
                <p><strong>The tableau has an open branch.</strong></p>
                <div class="formula-box red">w0, a, with Β¬T(a), Β¬U(a), Β¬S(a)</div>
            `,
            question_html: `
                <p><strong>What do the axioms A4, A11, A12 do in the tableau?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q9" value="0"> They close the tableau.</label>
                    <label><input type="radio" name="q9" value="1"> They lead to new worlds, but not back to w0.</label>
                    <label><input type="radio" name="q9" value="2"> They force T(a) in w0.</label>
                    <label><input type="radio" name="q9" value="3"> They force U(a) in w0.</label>
                    <label><input type="radio" name="q9" value="4"> They force S(a) in w0.</label>
                    <label><input type="radio" name="q9" value="5"> They are not applicable.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 10,
            title: "Metatheoretical Conclusion – Non-Derivability",
            part: "Part I",
            explanation: `
                <p>According to the <strong>soundness and completeness theorem</strong> of the S5 tableau calculus:</p>
                <div class="formula-box" style="background:#f5f0ea;">A set of formulas Ξ£ is S5-satisfiable exactly when the tableau for Ξ£ has an open branch.</div>
                <p>Our tableau for</p>
                <div class="formula-box">Ξ£ = { A1, A4, A11, A12, A13, A14, A15, Β¬β–‘βˆ€xTr(x) }</div>
                <p>has an open branch. Thus Ξ£ is S5-satisfiable.</p>
                <p>There exists an S5 model that satisfies all axioms, but in w0 has an individual a with Β¬T(a), Β¬U(a), Β¬S(a).</p>
                <div class="formula-box important red">S5 &not;&vdash; β–‘βˆ€xTr(x)</div>
            `,
            question_html: `
                <p><strong>What follows from the open tableau branch?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q10" value="0"> The target formula is provable in S5.</label>
                    <label><input type="radio" name="q10" value="1"> The target formula is not provable in S5.</label>
                    <label><input type="radio" name="q10" value="2"> The tableau is flawed.</label>
                    <label><input type="radio" name="q10" value="3"> The axioms are contradictory.</label>
                    <label><input type="radio" name="q10" value="4"> There is no S5 model.</label>
                    <label><input type="radio" name="q10" value="5"> The target formula is necessarily true.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 11,
            title: "Summary of Part I",
            part: "Part I",
            explanation: `
                <div style="background:#f8d7da; padding:0.8rem 1.2rem; border-radius:8px;">
                    <p style="font-weight:bold; color:#8a3a3a;">Result of Part I:</p>
                    <div class="formula-box red">S5 &not;&vdash; β–‘βˆ€xTr(x)</div>
                    <p>The Trinity is <strong>not</strong> derivable in <strong>pure S5</strong>.</p>
                    <p>The reason: A bridge from the existence of Tr in one world to necessity in all worlds is missing.</p>
                </div>
                <p style="margin-top:1rem;">In <strong>Part II</strong>, this bridge is introduced via the <strong>superposition axioms</strong> (ASP1–ASP5).</p>
            `,
            question_html: `
                <p><strong>What is the result of Part I?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q11" value="0"> S5 proves the Trinity.</label>
                    <label><input type="radio" name="q11" value="1"> S5 does not prove the Trinity.</label>
                    <label><input type="radio" name="q11" value="2"> The Trinity is impossible in S5.</label>
                    <label><input type="radio" name="q11" value="3"> The Trinity is necessary in S5.</label>
                    <label><input type="radio" name="q11" value="4"> The Trinity is an illusion.</label>
                    <label><input type="radio" name="q11" value="5"> S5 is contradictory.</label>
                </div>
            `,
            answer: 1
        },

        // ============================================================
        //  PART II: PROOF IN S5+SP (Steps 12–20)
        // ============================================================
        {
            id: 12,
            title: "PART II – The Superposition Extension (ASP)",
            part: "Part II",
            explanation: `
                <div style="background:#d4e4f7; padding:0.5rem 1rem; border-radius:6px; margin-bottom:1rem;">
                    <span class="part-tag p2">PART II</span>
                    <strong>Goal:</strong> Prove the Trinity in the extended system <strong>S5+SP</strong>.
                </div>
                <p>The <strong>superposition axioms</strong> (ASP) formalize the idea that consciousness (C) is the self-reflexive moment of a superposition from which all worlds emerge.</p>
                <ul>
                    <li><strong>ASP1:</strong> <span class="symbol">C @ w<sub>super</sub></span> – Consciousness in the superposition</li>
                    <li><strong>ASP2:</strong> <span class="symbol">βˆ€v (w<sub>super</sub> R v β†’ (C @ v ↔ v = w<sub>super</sub>))</span> – Uniqueness of C</li>
                    <li><strong>ASP3:</strong> <span class="symbol">βˆ€x Tr(x) @ w<sub>super</sub></span> – Superposition contains all Tr-properties</li>
                    <li><strong>ASP4:</strong> <span class="symbol">βˆ€v (w<sub>super</sub> R v β†’ βˆ€x Tr(x) @ v)</span> – Transfer to all worlds</li>
                    <li><strong>ASP5:</strong> <span class="symbol">βˆ€v (v β‰  w<sub>super</sub> β†’ w<sub>super</sub> R v)</span> – Universal reachability</li>
                </ul>
            `,
            question_html: `
                <p><strong>How many superposition axioms are introduced?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q12" value="0"> Two</label>
                    <label><input type="radio" name="q12" value="1"> Three</label>
                    <label><input type="radio" name="q12" value="2"> Four</label>
                    <label><input type="radio" name="q12" value="3"> Five</label>
                    <label><input type="radio" name="q12" value="4"> Six</label>
                    <label><input type="radio" name="q12" value="5"> Seven</label>
                </div>
            `,
            answer: 3
        },
        {
            id: 13,
            title: "ASP1 – Consciousness in the Superposition",
            part: "Part II",
            explanation: `
                <p><strong>ASP1:</strong></p>
                <div class="formula-box">ASP1 := C @ w<sub>super</sub></div>
                <p>This means: <strong>Consciousness holds in the superposition.</strong></p>
                <p>The superposition is the <strong>primordial state</strong> in which all possibilities are still undividedly contained.</p>
                <p><strong>Philosophical meaning:</strong> Consciousness is not something that <em>occurs</em> in the worlds – it is the <strong>ground</strong> for why worlds exist at all.</p>
            `,
            question_html: `
                <p><strong>What does ASP1 state?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q13" value="0"> Consciousness is in all worlds.</label>
                    <label><input type="radio" name="q13" value="1"> Consciousness holds in the superposition.</label>
                    <label><input type="radio" name="q13" value="2"> Consciousness is impossible.</label>
                    <label><input type="radio" name="q13" value="3"> Consciousness is an illusion.</label>
                    <label><input type="radio" name="q13" value="4"> Consciousness contradicts A1.</label>
                    <label><input type="radio" name="q13" value="5"> Consciousness is in no world.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 14,
            title: "ASP2, ASP3 – Uniqueness and Tr-Properties",
            part: "Part II",
            explanation: `
                <p><strong>ASP2 – Uniqueness of C:</strong></p>
                <div class="formula-box">βˆ€v (w<sub>super</sub> R v β†’ (C @ v ↔ v = w<sub>super</sub>))</div>
                <p>This means: <strong>Consciousness holds only in the superposition</strong> – no other world has it.</p>
                <p><strong>ASP3 – The Superposition contains all Tr-properties:</strong></p>
                <div class="formula-box">βˆ€x Tr(x) @ w<sub>super</sub></div>
                <p>This means: The superposition already contains <strong>all</strong> properties T, U, S.</p>
                <p>It is the <strong>ground</strong> for everything that holds in the worlds.</p>
            `,
            question_html: `
                <p><strong>What does ASP3 state?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q14" value="0"> The superposition contains no Tr-properties.</label>
                    <label><input type="radio" name="q14" value="1"> The superposition contains all Tr-properties.</label>
                    <label><input type="radio" name="q14" value="2"> The superposition contains only T.</label>
                    <label><input type="radio" name="q14" value="3"> The superposition contains only U.</label>
                    <label><input type="radio" name="q14" value="4"> The superposition contains only S.</label>
                    <label><input type="radio" name="q14" value="5"> The superposition contains no properties.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 15,
            title: "ASP4 and ASP5 – Transfer and Reachability",
            part: "Part II",
            explanation: `
                <p><strong>ASP4 – Transfer to all worlds:</strong></p>
                <div class="formula-box">βˆ€v (w<sub>super</sub> R v β†’ βˆ€x Tr(x) @ v)</div>
                <p>This means: <strong>What holds in the superposition holds in all reachable worlds.</strong></p>
                <p><strong>ASP5 – Universal reachability:</strong></p>
                <div class="formula-box">βˆ€v (v β‰  w<sub>super</sub> β†’ w<sub>super</sub> R v)</div>
                <p>This means: <strong>Every other world is reachable from the superposition.</strong></p>
                <p>The superposition is the <strong>unique origin</strong> of all worlds.</p>
            `,
            question_html: `
                <p><strong>What does ASP4 state?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q15" value="0"> What holds in the superposition holds only there.</label>
                    <label><input type="radio" name="q15" value="1"> What holds in the superposition holds in all reachable worlds.</label>
                    <label><input type="radio" name="q15" value="2"> What holds in the superposition holds in no other world.</label>
                    <label><input type="radio" name="q15" value="3"> What holds in the superposition is false.</label>
                    <label><input type="radio" name="q15" value="4"> What holds in the superposition is possible.</label>
                    <label><input type="radio" name="q15" value="5"> What holds in the superposition is impossible.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 16,
            title: "The Semantic Proof in S5+SP",
            part: "Part II",
            explanation: `
                <p><strong>Claim:</strong> In every S5+SP model:</p>
                <div class="formula-box important">β–‘βˆ€xTr(x)</div>
                <p><strong>Proof:</strong></p>
                <p>Let <span class="symbol">w</span> be an arbitrary world.</p>
                <p><strong>Case 1:</strong> <span class="symbol">w = w<sub>super</sub></span></p>
                <p>By ASP3: <span class="symbol">βˆ€xTr(x) @ w<sub>super</sub></span>. Thus the claim holds.</p>
                <p><strong>Case 2:</strong> <span class="symbol">w β‰  w<sub>super</sub></span></p>
                <p>By ASP5: <span class="symbol">w<sub>super</sub> R w</span>.</p>
                <p>By ASP4: <span class="symbol">βˆ€xTr(x) @ w</span>. Thus the claim holds.</p>
                <p>Since <span class="symbol">w</span> was arbitrary, <span class="symbol">βˆ€w βˆ€xTr(x) @ w</span>, hence <span class="symbol">β–‘βˆ€xTr(x)</span>.</p>
                <div class="formula-box important blue">S5+SP &vdash; β–‘βˆ€xTr(x)</div>
            `,
            question_html: `
                <p><strong>What follows from ASP3, ASP4, and ASP5?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q16" value="0"> The Trinity is impossible.</label>
                    <label><input type="radio" name="q16" value="1"> The Trinity holds in all worlds necessarily.</label>
                    <label><input type="radio" name="q16" value="2"> The Trinity holds only in the superposition.</label>
                    <label><input type="radio" name="q16" value="3"> The Trinity holds only in some worlds.</label>
                    <label><input type="radio" name="q16" value="4"> The Trinity is an illusion.</label>
                    <label><input type="radio" name="q16" value="5"> The Trinity contradicts the axioms.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 17,
            title: "Tableau Proof in S5+SP – Reductio",
            part: "Part II",
            explanation: `
                <p>The tableau proof in S5+SP begins with the reductio assumption:</p>
                <div class="tableau">
<span class="hl">TABLEAU PROOF IN S5+SP</span>
<span class="hl">GOAL: ⊒ β–‘βˆ€x Tr(x)</span>

<span class="green">─────────────────────────────────────────────────────────────</span>
<span class="hl">REDUCTIO ASSUMPTION:</span>
<span class="green">─────────────────────────────────────────────────────────────</span>

1.  Β¬β–‘βˆ€x Tr(x)                                    [Assumption: target false]
2.  β—‡Β¬βˆ€x Tr(x)                                    [1, Β¬β–‘-rule]
3.  Β¬βˆ€x Tr(x) @ w0                                [2, β—‡-rule: new world w0]
4.  βˆƒx Β¬Tr(x) @ w0                                [3, Β¬βˆ€-rule]
5.  Β¬Tr(a) @ w0                                   [4, βˆƒ-rule: a new]
                </div>
            `,
            question_html: `
                <p><strong>How does the tableau proof in S5+SP begin?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q17" value="0"> With the assumption Β¬β–‘βˆ€xTr(x).</label>
                    <label><input type="radio" name="q17" value="1"> With the assumption β–‘βˆ€xTr(x).</label>
                    <label><input type="radio" name="q17" value="2"> With the assumption Β¬Tr(a).</label>
                    <label><input type="radio" name="q17" value="3"> With the assumption Tr(a).</label>
                    <label><input type="radio" name="q17" value="4"> With the assumption Β¬ASP3.</label>
                    <label><input type="radio" name="q17" value="5"> With the assumption Β¬ASP4.</label>
                </div>
            `,
            answer: 0
        },
        {
            id: 18,
            title: "Tableau Proof – Case Distinction",
            part: "Part II",
            explanation: `
                <p>The tableau branches on the identity of <span class="symbol">w0</span>:</p>
                <div class="tableau">
<span class="green">─────────────────────────────────────────────────────────────</span>
<span class="hl">CASE DISTINCTION: w0 = w_super ∨ w0 β‰  w_super</span>
<span class="green">─────────────────────────────────────────────────────────────</span>

6.  w0 = w_super  ∨  w0 β‰  w_super                  [Identity]

    β†’ Branch A: w0 = w_super
    β†’ Branch B: w0 β‰  w_super
                </div>
                <p>Both cases are now examined separately.</p>
            `,
            question_html: `
                <p><strong>What does the tableau branch on in step 6?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q18" value="0"> On Tr(a) or Β¬Tr(a).</label>
                    <label><input type="radio" name="q18" value="1"> On w0 = w_super or w0 β‰  w_super.</label>
                    <label><input type="radio" name="q18" value="2"> On ASP3 or Β¬ASP3.</label>
                    <label><input type="radio" name="q18" value="3"> On ASP4 or Β¬ASP4.</label>
                    <label><input type="radio" name="q18" value="4"> On A1 or Β¬A1.</label>
                    <label><input type="radio" name="q18" value="5"> On T(a) or Β¬T(a).</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 19,
            title: "Tableau Proof – Branch A: w0 = w_super",
            part: "Part II",
            explanation: `
                <p><strong>Branch A:</strong> <span class="symbol">w0 = w<sub>super</sub></span></p>
                <div class="tableau">
<span class="green">─────────────────────────────────────────────────────────────</span>
<span class="hl">BRANCH A: w0 = w_super</span>
<span class="green">─────────────────────────────────────────────────────────────</span>

7.  Β¬Tr(a) @ w_super                               [5, Substitution]
8.  βˆ€x Tr(x) @ w_super                             [ASP3, Axiom]
9.  Tr(a) @ w_super                                [8, βˆ€-rule on a]
10. <span class="red">Contradiction: Tr(a) @ w_super and Β¬Tr(a) @ w_super</span>
    β†’ Branch A closes (βŠ₯).
                </div>
                <p><strong>Branch A closes.</strong></p>
            `,
            question_html: `
                <p><strong>Why does Branch A close?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q19" value="0"> Because of a contradiction between Tr(a) and Β¬Tr(a) in w_super.</label>
                    <label><input type="radio" name="q19" value="1"> Because ASP3 is not applicable.</label>
                    <label><input type="radio" name="q19" value="2"> Because ASP4 is not applicable.</label>
                    <label><input type="radio" name="q19" value="3"> Because ASP5 is not applicable.</label>
                    <label><input type="radio" name="q19" value="4"> Because the assumption is correct.</label>
                    <label><input type="radio" name="q19" value="5"> Because there is no contradiction.</label>
                </div>
            `,
            answer: 0
        },
        {
            id: 20,
            title: "Tableau Proof – Branch B: w0 β‰  w_super",
            part: "Part II",
            explanation: `
                <p><strong>Branch B:</strong> <span class="symbol">w0 β‰  w<sub>super</sub></span></p>
                <div class="tableau">
<span class="green">─────────────────────────────────────────────────────────────</span>
<span class="hl">BRANCH B: w0 β‰  w_super</span>
<span class="green">─────────────────────────────────────────────────────────────</span>

11. w0 β‰  w_super                                   [from 6, Branch B]
12. w_super R w0                                   [11, ASP5]
13. βˆ€x Tr(x) @ w0                                  [12, ASP4]
14. Tr(a) @ w0                                     [13, βˆ€-rule on a]
15. <span class="red">Contradiction: Tr(a) @ w0 and Β¬Tr(a) @ w0 (from 5)</span>
    β†’ Branch B closes (βŠ₯).

<span class="green">─────────────────────────────────────────────────────────────</span>
<span class="hl">BOTH BRANCHES CLOSE.</span>
<span class="green">─────────────────────────────────────────────────────────────</span>

Therefore, the assumption Β¬β–‘βˆ€xTr(x) is contradictory.

Thus: ⊒ β–‘βˆ€xTr(x) in S5+SP.
<span class="hl">QED.</span>
                </div>
            `,
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                    <label><input type="radio" name="q20" value="4"> The Trinity is an illusion.</label>
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                </div>
            `,
            answer: 1
        },

        // ============================================================
        //  PART III: METATHEORETICAL CLASSIFICATION (Steps 21–23)
        // ============================================================
        {
            id: 21,
            title: "PART III – What Has Been Shown?",
            part: "Part III",
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                <div style="background:#e8e0f0; padding:0.5rem 1rem; border-radius:6px; margin-bottom:1rem;">
                    <span class="part-tag p3">PART III</span>
                    <strong>Metatheoretical Classification</strong>
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                    <tr style="background:#e0d6c8;">
                        <th style="border:1px solid #d4cab8; padding:0.5rem; text-align:left;">System</th>
                        <th style="border:1px solid #d4cab8; padding:0.5rem; text-align:left;">Statement</th>
                        <th style="border:1px solid #d4cab8; padding:0.5rem; text-align:left;">Status</th>
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                    <tr>
                        <td style="border:1px solid #d4cab8; padding:0.5rem;"><strong>Pure S5</strong></td>
                        <td style="border:1px solid #d4cab8; padding:0.5rem;">S5 &not;&vdash; β–‘βˆ€xTr(x)</td>
                        <td style="border:1px solid #d4cab8; padding:0.5rem; color:#8a3a3a; font-weight:bold;">Proven (open tableau branch)</td>
                    </tr>
                    <tr>
                        <td style="border:1px solid #d4cab8; padding:0.5rem;"><strong>S5+SP</strong></td>
                        <td style="border:1px solid #d4cab8; padding:0.5rem;">S5+SP &vdash; β–‘βˆ€xTr(x)</td>
                        <td style="border:1px solid #d4cab8; padding:0.5rem; color:#3a7a3a; font-weight:bold;">Proven (closed tableau)</td>
                    </tr>
                </table>
                <div class="formula-box important">The bridge from existence to necessity is not a theorem of S5. It must be introduced as an additional metaphysical assumption.</div>
            `,
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                <p><strong>What has been shown in Part III?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q21" value="0"> S5 proves the Trinity, S5+SP does not.</label>
                    <label><input type="radio" name="q21" value="1"> S5 does not prove the Trinity, S5+SP proves it.</label>
                    <label><input type="radio" name="q21" value="2"> Both systems prove the Trinity.</label>
                    <label><input type="radio" name="q21" value="3"> Both systems do not prove the Trinity.</label>
                    <label><input type="radio" name="q21" value="4"> The Trinity is impossible in both systems.</label>
                    <label><input type="radio" name="q21" value="5"> The Trinity is necessary in both systems.</label>
                </div>
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            answer: 1
        },
        {
            id: 22,
            title: "The Role of C (Consciousness)",
            part: "Part III",
            explanation: `
                <p>The superposition axioms formalize the intuition that <strong>consciousness (C)</strong> is the self-reflexive moment of the superposition:</p>
                <ul>
                    <li><strong>ASP1:</strong> C holds in the superposition.</li>
                    <li><strong>ASP2:</strong> C holds only there – it is a <strong>singular event</strong>.</li>
                    <li><strong>ASP3–ASP5:</strong> The superposition is the necessary ground for all properties in all worlds.</li>
                </ul>
                <div class="formula-box important">C becomes the <strong>bridge from existence to necessity</strong>.</div>
                <p>Because the superposition contains Tr and all worlds emerge from it, Tr holds necessarily in all worlds.</p>
            `,
            question_html: `
                <p><strong>What role does C (Consciousness) play in the extended system?</strong></p>
                <div class="qoptions">
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                    <label><input type="radio" name="q22" value="1"> C is the bridge from existence to necessity.</label>
                    <label><input type="radio" name="q22" value="2"> C contradicts the other axioms.</label>
                    <label><input type="radio" name="q22" value="3"> C is an illusion.</label>
                    <label><input type="radio" name="q22" value="4"> C is the same as T.</label>
                    <label><input type="radio" name="q22" value="5"> C is the same as U.</label>
                </div>
            `,
            answer: 1
        },
        {
            id: 23,
            title: "Conclusion – The Trinity as a Structural Condition",
            part: "Part III",
            explanation: `
                <p>The treatise has shown:</p>
                <ol>
                    <li><strong>In pure S5</strong>, the Trinity is <strong>not provable</strong> (Part I).</li>
                    <li><strong>In the extended system S5+SP</strong> (with superposition axioms), the Trinity is <strong>provable</strong> (Part II).</li>
                    <li>The crucial metaphysical burden rests on the superposition axioms – they are <strong>not logical theorems</strong>, but <strong>additional assumptions</strong>.</li>
                </ol>
                <div class="formula-box important" style="font-size:1.2rem;">The Trinity is not an additional entity, but a structural condition – yet it is provable only under the superposition hypothesis.</div>
                <p style="margin-top:1rem; text-align:center; font-style:italic; color:#555;">This treatise was written in the spirit of rigorous modal logic, yet in the language of philosophy – for truth requires both: the precision of the formula and the breadth of the concept.</p>
            `,
            question_html: `
                <p><strong>What is the final conclusion?</strong></p>
                <div class="qoptions">
                    <label><input type="radio" name="q23" value="0"> The Trinity is provable in S5.</label>
                    <label><input type="radio" name="q23" value="1"> The Trinity is provable only under the superposition hypothesis.</label>
                    <label><input type="radio" name="q23" value="2"> The Trinity is impossible.</label>
                    <label><input type="radio" name="q23" value="3"> The Trinity is an illusion.</label>
                    <label><input type="radio" name="q23" value="4"> The Trinity is the same as Totality.</label>
                    <label><input type="radio" name="q23" value="5"> The Trinity is the same as Origin.</label>
                </div>
            `,
            answer: 1
        }
    ];

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