satfv1fvfmla1 - Mathbox for Mario Carneiro

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Theorem satfv1fvfmla1 35374

Description: The value of the satisfaction predicate at two Godel-sets of membership combined with a Godel-set for NAND. (Contributed by AV, 17-Nov-2023.)

**Hypothesis**
Ref	Expression
satfv1fvfmla1.x	⊢ 𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿))

**Assertion**
Ref	Expression
satfv1fvfmla1	⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (((𝑀 Sat 𝐸)‘1_o)‘𝑋) = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))})

Distinct variable groups: 𝐸,𝑎 𝐼,𝑎 𝐽,𝑎 𝐾,𝑎 𝐿,𝑎 𝑀,𝑎 Allowed substitution hints: 𝑉(𝑎) 𝑊(𝑎) 𝑋(𝑎)

Proof of Theorem satfv1fvfmla1 Dummy variables 𝑖 𝑗 𝑘 𝑛 𝑥 𝑙 𝑦 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl 482	. . . . 5 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) → 𝑀 ∈ 𝑉)
2		simpr 484	. . . . 5 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) → 𝐸 ∈ 𝑊)
3		1onn 8647	. . . . . 6 ⊢ 1_o ∈ ω
4	3	a1i 11	. . . . 5 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) → 1_o ∈ ω)
5	1, 2, 4	3jca 1128	. . . 4 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) → (𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊 ∧ 1_o ∈ ω))
6	5	3ad2ant1 1133	. . 3 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊 ∧ 1_o ∈ ω))
7		satffun 35360	. . 3 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊 ∧ 1_o ∈ ω) → Fun ((𝑀 Sat 𝐸)‘1_o))
8	6, 7	syl 17	. 2 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → Fun ((𝑀 Sat 𝐸)‘1_o))
9		simp2l 1199	. . . . . . 7 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → 𝐼 ∈ ω)
10		simp2r 1200	. . . . . . 7 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → 𝐽 ∈ ω)
11		simp3l 1201	. . . . . . . . 9 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → 𝐾 ∈ ω)
12		simp3r 1202	. . . . . . . . 9 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → 𝐿 ∈ ω)
13		satfv1fvfmla1.x	. . . . . . . . . . 11 ⊢ 𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿))
14		eqid 2734	. . . . . . . . . . 11 ⊢ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}
15	13, 14	pm3.2i 470	. . . . . . . . . 10 ⊢ (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))})
16	15	a1i 11	. . . . . . . . 9 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}))
17		oveq1 7407	. . . . . . . . . . . . 13 ⊢ (𝑘 = 𝐾 → (𝑘∈_𝑔𝑙) = (𝐾∈_𝑔𝑙))
18	17	oveq2d 7416	. . . . . . . . . . . 12 ⊢ (𝑘 = 𝐾 → ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝑙)))
19	18	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑘 = 𝐾 → (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ↔ 𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝑙))))
20		fveq2 6873	. . . . . . . . . . . . . . . 16 ⊢ (𝑘 = 𝐾 → (𝑎‘𝑘) = (𝑎‘𝐾))
21	20	breq1d 5127	. . . . . . . . . . . . . . 15 ⊢ (𝑘 = 𝐾 → ((𝑎‘𝑘)𝐸(𝑎‘𝑙) ↔ (𝑎‘𝐾)𝐸(𝑎‘𝑙)))
22	21	notbid 318	. . . . . . . . . . . . . 14 ⊢ (𝑘 = 𝐾 → (¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙) ↔ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙)))
23	22	orbi2d 915	. . . . . . . . . . . . 13 ⊢ (𝑘 = 𝐾 → ((¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙)) ↔ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))))
24	23	rabbidv 3421	. . . . . . . . . . . 12 ⊢ (𝑘 = 𝐾 → {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))})
25	24	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑘 = 𝐾 → ({𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))}))
26	19, 25	anbi12d 632	. . . . . . . . . 10 ⊢ (𝑘 = 𝐾 → ((𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))})))
27		oveq2 7408	. . . . . . . . . . . . 13 ⊢ (𝑙 = 𝐿 → (𝐾∈_𝑔𝑙) = (𝐾∈_𝑔𝐿))
28	27	oveq2d 7416	. . . . . . . . . . . 12 ⊢ (𝑙 = 𝐿 → ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝑙)) = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿)))
29	28	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑙 = 𝐿 → (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝑙)) ↔ 𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿))))
30		fveq2 6873	. . . . . . . . . . . . . . . 16 ⊢ (𝑙 = 𝐿 → (𝑎‘𝑙) = (𝑎‘𝐿))
31	30	breq2d 5129	. . . . . . . . . . . . . . 15 ⊢ (𝑙 = 𝐿 → ((𝑎‘𝐾)𝐸(𝑎‘𝑙) ↔ (𝑎‘𝐾)𝐸(𝑎‘𝐿)))
32	31	notbid 318	. . . . . . . . . . . . . 14 ⊢ (𝑙 = 𝐿 → (¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙) ↔ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿)))
33	32	orbi2d 915	. . . . . . . . . . . . 13 ⊢ (𝑙 = 𝐿 → ((¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙)) ↔ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))))
34	33	rabbidv 3421	. . . . . . . . . . . 12 ⊢ (𝑙 = 𝐿 → {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))})
35	34	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑙 = 𝐿 → ({𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}))
36	29, 35	anbi12d 632	. . . . . . . . . 10 ⊢ (𝑙 = 𝐿 → ((𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝑙))}) ↔ (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))})))
37	26, 36	rspc2ev 3612	. . . . . . . . 9 ⊢ ((𝐾 ∈ ω ∧ 𝐿 ∈ ω ∧ (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝐾∈_𝑔𝐿)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))})) → ∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}))
38	11, 12, 16, 37	syl3anc 1372	. . . . . . . 8 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → ∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}))
39	38	orcd 873	. . . . . . 7 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝐽) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))})))
40		oveq1 7407	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐼 → (𝑖∈_𝑔𝑗) = (𝐼∈_𝑔𝑗))
41	40	oveq1d 7415	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝐼 → ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)))
42	41	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑖 = 𝐼 → (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ↔ 𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙))))
43		fveq2 6873	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 = 𝐼 → (𝑎‘𝑖) = (𝑎‘𝐼))
44	43	breq1d 5127	. . . . . . . . . . . . . . 15 ⊢ (𝑖 = 𝐼 → ((𝑎‘𝑖)𝐸(𝑎‘𝑗) ↔ (𝑎‘𝐼)𝐸(𝑎‘𝑗)))
45	44	notbid 318	. . . . . . . . . . . . . 14 ⊢ (𝑖 = 𝐼 → (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ↔ ¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗)))
46	45	orbi1d 916	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐼 → ((¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙)) ↔ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))))
47	46	rabbidv 3421	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝐼 → {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})
48	47	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑖 = 𝐼 → ({𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}))
49	42, 48	anbi12d 632	. . . . . . . . . 10 ⊢ (𝑖 = 𝐼 → ((𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ (𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})))
50	49	2rexbidv 3204	. . . . . . . . 9 ⊢ (𝑖 = 𝐼 → (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ ∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})))
51		eqidd 2735	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐼 → 𝑛 = 𝑛)
52	51, 40	goaleq12d 35302	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝐼 → ∀_𝑔𝑛(𝑖∈_𝑔𝑗) = ∀_𝑔𝑛(𝐼∈_𝑔𝑗))
53	52	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑖 = 𝐼 → (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ↔ 𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗)))
54		eqeq1 2738	. . . . . . . . . . . . . . 15 ⊢ (𝑖 = 𝐼 → (𝑖 = 𝑛 ↔ 𝐼 = 𝑛))
55		biidd 262	. . . . . . . . . . . . . . 15 ⊢ (𝑖 = 𝐼 → (if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)) ↔ if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗))))
56	43	breq1d 5127	. . . . . . . . . . . . . . . 16 ⊢ (𝑖 = 𝐼 → ((𝑎‘𝑖)𝐸𝑧 ↔ (𝑎‘𝐼)𝐸𝑧))
57	56, 44	ifpbi23d 1079	. . . . . . . . . . . . . . 15 ⊢ (𝑖 = 𝐼 → (if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)) ↔ if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗))))
58	54, 55, 57	ifpbi123d 1078	. . . . . . . . . . . . . 14 ⊢ (𝑖 = 𝐼 → (if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗))) ↔ if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))))
59	58	ralbidv 3161	. . . . . . . . . . . . 13 ⊢ (𝑖 = 𝐼 → (∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗))) ↔ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))))
60	59	rabbidv 3421	. . . . . . . . . . . 12 ⊢ (𝑖 = 𝐼 → {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))})
61	60	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑖 = 𝐼 → ({𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))}))
62	53, 61	anbi12d 632	. . . . . . . . . 10 ⊢ (𝑖 = 𝐼 → ((𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}) ↔ (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))})))
63	62	rexbidv 3162	. . . . . . . . 9 ⊢ (𝑖 = 𝐼 → (∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}) ↔ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))})))
64	50, 63	orbi12d 918	. . . . . . . 8 ⊢ (𝑖 = 𝐼 → ((∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})) ↔ (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))}))))
65		oveq2 7408	. . . . . . . . . . . . 13 ⊢ (𝑗 = 𝐽 → (𝐼∈_𝑔𝑗) = (𝐼∈_𝑔𝐽))
66	65	oveq1d 7415	. . . . . . . . . . . 12 ⊢ (𝑗 = 𝐽 → ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)))
67	66	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑗 = 𝐽 → (𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ↔ 𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙))))
68		fveq2 6873	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 = 𝐽 → (𝑎‘𝑗) = (𝑎‘𝐽))
69	68	breq2d 5129	. . . . . . . . . . . . . . 15 ⊢ (𝑗 = 𝐽 → ((𝑎‘𝐼)𝐸(𝑎‘𝑗) ↔ (𝑎‘𝐼)𝐸(𝑎‘𝐽)))
70	69	notbid 318	. . . . . . . . . . . . . 14 ⊢ (𝑗 = 𝐽 → (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ↔ ¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽)))
71	70	orbi1d 916	. . . . . . . . . . . . 13 ⊢ (𝑗 = 𝐽 → ((¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙)) ↔ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))))
72	71	rabbidv 3421	. . . . . . . . . . . 12 ⊢ (𝑗 = 𝐽 → {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})
73	72	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑗 = 𝐽 → ({𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}))
74	67, 73	anbi12d 632	. . . . . . . . . 10 ⊢ (𝑗 = 𝐽 → ((𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})))
75	74	2rexbidv 3204	. . . . . . . . 9 ⊢ (𝑗 = 𝐽 → (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ ∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})))
76		eqidd 2735	. . . . . . . . . . . . 13 ⊢ (𝑗 = 𝐽 → 𝑛 = 𝑛)
77	76, 65	goaleq12d 35302	. . . . . . . . . . . 12 ⊢ (𝑗 = 𝐽 → ∀_𝑔𝑛(𝐼∈_𝑔𝑗) = ∀_𝑔𝑛(𝐼∈_𝑔𝐽))
78	77	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑗 = 𝐽 → (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ↔ 𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝐽)))
79		eqeq1 2738	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 = 𝐽 → (𝑗 = 𝑛 ↔ 𝐽 = 𝑛))
80		biidd 262	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 = 𝐽 → (𝑧𝐸𝑧 ↔ 𝑧𝐸𝑧))
81	68	breq2d 5129	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 = 𝐽 → (𝑧𝐸(𝑎‘𝑗) ↔ 𝑧𝐸(𝑎‘𝐽)))
82	79, 80, 81	ifpbi123d 1078	. . . . . . . . . . . . . . 15 ⊢ (𝑗 = 𝐽 → (if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)) ↔ if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽))))
83		biidd 262	. . . . . . . . . . . . . . . 16 ⊢ (𝑗 = 𝐽 → ((𝑎‘𝐼)𝐸𝑧 ↔ (𝑎‘𝐼)𝐸𝑧))
84	79, 83, 69	ifpbi123d 1078	. . . . . . . . . . . . . . 15 ⊢ (𝑗 = 𝐽 → (if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)) ↔ if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽))))
85	82, 84	ifpbi23d 1079	. . . . . . . . . . . . . 14 ⊢ (𝑗 = 𝐽 → (if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗))) ↔ if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))))
86	85	ralbidv 3161	. . . . . . . . . . . . 13 ⊢ (𝑗 = 𝐽 → (∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗))) ↔ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))))
87	86	rabbidv 3421	. . . . . . . . . . . 12 ⊢ (𝑗 = 𝐽 → {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))})
88	87	eqeq2d 2745	. . . . . . . . . . 11 ⊢ (𝑗 = 𝐽 → ({𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))}))
89	78, 88	anbi12d 632	. . . . . . . . . 10 ⊢ (𝑗 = 𝐽 → ((𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))}) ↔ (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝐽) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))})))
90	89	rexbidv 3162	. . . . . . . . 9 ⊢ (𝑗 = 𝐽 → (∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))}) ↔ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝐽) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))})))
91	75, 90	orbi12d 918	. . . . . . . 8 ⊢ (𝑗 = 𝐽 → ((∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝑗)))})) ↔ (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝐽) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))}))))
92	64, 91	rspc2ev 3612	. . . . . . 7 ⊢ ((𝐼 ∈ ω ∧ 𝐽 ∈ ω ∧ (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝐼∈_𝑔𝐽)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝐼∈_𝑔𝐽) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝐼 = 𝑛, if-(𝐽 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝐽)), if-(𝐽 = 𝑛, (𝑎‘𝐼)𝐸𝑧, (𝑎‘𝐼)𝐸(𝑎‘𝐽)))}))) → ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})))
93	9, 10, 39, 92	syl3anc 1372	. . . . . 6 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})))
94	13	ovexi 7434	. . . . . . . 8 ⊢ 𝑋 ∈ V
95	94	a1i 11	. . . . . . 7 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → 𝑋 ∈ V)
96		ovex 7433	. . . . . . . 8 ⊢ (𝑀 ↑_m ω) ∈ V
97	96	rabex 5307	. . . . . . 7 ⊢ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} ∈ V
98		eqeq1 2738	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑋 → (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ↔ 𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙))))
99		eqeq1 2738	. . . . . . . . . . . 12 ⊢ (𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} → (𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}))
100	98, 99	bi2anan9 638	. . . . . . . . . . 11 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}) → ((𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})))
101	100	2rexbidv 3204	. . . . . . . . . 10 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}) → (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ↔ ∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))})))
102		eqeq1 2738	. . . . . . . . . . . 12 ⊢ (𝑥 = 𝑋 → (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ↔ 𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗)))
103		eqeq1 2738	. . . . . . . . . . . 12 ⊢ (𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} → (𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))} ↔ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))
104	102, 103	bi2anan9 638	. . . . . . . . . . 11 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}) → ((𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}) ↔ (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})))
105	104	rexbidv 3162	. . . . . . . . . 10 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}) → (∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}) ↔ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})))
106	101, 105	orbi12d 918	. . . . . . . . 9 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}) → ((∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})) ↔ (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))))
107	106	2rexbidv 3204	. . . . . . . 8 ⊢ ((𝑥 = 𝑋 ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}) → (∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))})) ↔ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))))
108	107	opelopabga 5506	. . . . . . 7 ⊢ ((𝑋 ∈ V ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} ∈ V) → (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))} ↔ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))))
109	95, 97, 108	sylancl 586	. . . . . 6 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))} ↔ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑋 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑋 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))} = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))))
110	93, 109	mpbird 257	. . . . 5 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))})
111	110	olcd 874	. . . 4 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ ((𝑀 Sat 𝐸)‘∅) ∨ ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))}))
112		elun 4126	. . . 4 ⊢ (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ (((𝑀 Sat 𝐸)‘∅) ∪ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))}) ↔ (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ ((𝑀 Sat 𝐸)‘∅) ∨ ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))}))
113	111, 112	sylibr 234	. . 3 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ (((𝑀 Sat 𝐸)‘∅) ∪ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))}))
114		eqid 2734	. . . . . 6 ⊢ (𝑀 Sat 𝐸) = (𝑀 Sat 𝐸)
115	114	satfv1 35314	. . . . 5 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) → ((𝑀 Sat 𝐸)‘1_o) = (((𝑀 Sat 𝐸)‘∅) ∪ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))}))
116	115	eleq2d 2819	. . . 4 ⊢ ((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) → (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ ((𝑀 Sat 𝐸)‘1_o) ↔ ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ (((𝑀 Sat 𝐸)‘∅) ∪ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))})))
117	116	3ad2ant1 1133	. . 3 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ ((𝑀 Sat 𝐸)‘1_o) ↔ ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ (((𝑀 Sat 𝐸)‘∅) ∪ {⟨𝑥, 𝑦⟩ ∣ ∃𝑖 ∈ ω ∃𝑗 ∈ ω (∃𝑘 ∈ ω ∃𝑙 ∈ ω (𝑥 = ((𝑖∈_𝑔𝑗)⊼_𝑔(𝑘∈_𝑔𝑙)) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝑖)𝐸(𝑎‘𝑗) ∨ ¬ (𝑎‘𝑘)𝐸(𝑎‘𝑙))}) ∨ ∃𝑛 ∈ ω (𝑥 = ∀_𝑔𝑛(𝑖∈_𝑔𝑗) ∧ 𝑦 = {𝑎 ∈ (𝑀 ↑_m ω) ∣ ∀𝑧 ∈ 𝑀 if-(𝑖 = 𝑛, if-(𝑗 = 𝑛, 𝑧𝐸𝑧, 𝑧𝐸(𝑎‘𝑗)), if-(𝑗 = 𝑛, (𝑎‘𝑖)𝐸𝑧, (𝑎‘𝑖)𝐸(𝑎‘𝑗)))}))})))
118	113, 117	mpbird 257	. 2 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → ⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ ((𝑀 Sat 𝐸)‘1_o))
119		funopfv 6925	. 2 ⊢ (Fun ((𝑀 Sat 𝐸)‘1_o) → (⟨𝑋, {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}⟩ ∈ ((𝑀 Sat 𝐸)‘1_o) → (((𝑀 Sat 𝐸)‘1_o)‘𝑋) = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))}))
120	8, 118, 119	sylc 65	1 ⊢ (((𝑀 ∈ 𝑉 ∧ 𝐸 ∈ 𝑊) ∧ (𝐼 ∈ ω ∧ 𝐽 ∈ ω) ∧ (𝐾 ∈ ω ∧ 𝐿 ∈ ω)) → (((𝑀 Sat 𝐸)‘1_o)‘𝑋) = {𝑎 ∈ (𝑀 ↑_m ω) ∣ (¬ (𝑎‘𝐼)𝐸(𝑎‘𝐽) ∨ ¬ (𝑎‘𝐾)𝐸(𝑎‘𝐿))})

Colors of variables: wff setvar class

Syntax hints: ¬ wn 3 → wi 4 ↔ wb 206 ∧ wa 395 ∨ wo 847 if-wif 1062 ∧ w3a 1086 = wceq 1539 ∈ wcel 2107 ∀wral 3050 ∃wrex 3059 {crab 3413 Vcvv 3457 ∪ cun 3922 ∅c0 4306 ⟨cop 4605 class class class wbr 5117 {copab 5179 Fun wfun 6522 ‘cfv 6528 (class class class)co 7400 ωcom 7856 1_oc1o 8468 ↑_m cmap 8835 ∈_𝑔cgoe 35284 ⊼_𝑔cgna 35285 ∀_𝑔cgol 35286 Sat csat 35287

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1794 ax-4 1808 ax-5 1909 ax-6 1966 ax-7 2006 ax-8 2109 ax-9 2117 ax-10 2140 ax-11 2156 ax-12 2176 ax-ext 2706 ax-rep 5247 ax-sep 5264 ax-nul 5274 ax-pow 5333 ax-pr 5400 ax-un 7724 ax-inf2 9648

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-ifp 1063 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1779 df-nf 1783 df-sb 2064 df-mo 2538 df-eu 2567 df-clab 2713 df-cleq 2726 df-clel 2808 df-nfc 2884 df-ne 2932 df-nel 3036 df-ral 3051 df-rex 3060 df-reu 3358 df-rab 3414 df-v 3459 df-sbc 3764 df-csb 3873 df-dif 3927 df-un 3929 df-in 3931 df-ss 3941 df-pss 3944 df-nul 4307 df-if 4499 df-pw 4575 df-sn 4600 df-pr 4602 df-op 4606 df-uni 4882 df-int 4921 df-iun 4967 df-br 5118 df-opab 5180 df-mpt 5200 df-tr 5228 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6288 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6530 df-fn 6531 df-f 6532 df-f1 6533 df-fo 6534 df-f1o 6535 df-fv 6536 df-ov 7403 df-oprab 7404 df-mpo 7405 df-om 7857 df-1st 7983 df-2nd 7984 df-frecs 8275 df-wrecs 8306 df-recs 8380 df-rdg 8419 df-1o 8475 df-2o 8476 df-map 8837 df-goel 35291 df-gona 35292 df-goal 35293 df-sat 35294 df-fmla 35296

This theorem is referenced by: satefvfmla1 35376

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