Theorem goalr 33359

Description: If the "Godel-set of universal quantification" applied to a class is a Godel formula, the class is also a Godel formula. Remark: The reverse is not valid for 𝐴 being of the same height as the "Godel-set of universal quantification". (Contributed by AV, 22-Oct-2023.)

Assertion

Ref	Expression
goalr	⊢ ((𝑁 ∈ ω ∧ ∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁)) → 𝑎 ∈ (Fmla‘𝑁))

Distinct variable groups:   𝑖,𝑁   𝑖,𝑎

Allowed substitution hint:   𝑁(𝑎)

Proof of Theorem goalr

Dummy variables 𝑗 𝑥 𝑘 𝑢 𝑣 𝑛 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		goaln0 33355	. . 3 ⊢ (∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) → 𝑁 ≠ ∅)
2	1	adantl 482	. 2 ⊢ ((𝑁 ∈ ω ∧ ∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁)) → 𝑁 ≠ ∅)
3		nnsuc 7730	. . . 4 ⊢ ((𝑁 ∈ ω ∧ 𝑁 ≠ ∅) → ∃𝑛 ∈ ω 𝑁 = suc 𝑛)
4		suceq 6331	. . . . . . . . . . 11 ⊢ (𝑥 = ∅ → suc 𝑥 = suc ∅)
5	4	fveq2d 6778	. . . . . . . . . 10 ⊢ (𝑥 = ∅ → (Fmla‘suc 𝑥) = (Fmla‘suc ∅))
6	5	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = ∅ → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) ↔ ∀𝑔𝑖𝑎 ∈ (Fmla‘suc ∅)))
7	5	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = ∅ → (𝑎 ∈ (Fmla‘suc 𝑥) ↔ 𝑎 ∈ (Fmla‘suc ∅)))
8	6, 7	imbi12d 345	. . . . . . . 8 ⊢ (𝑥 = ∅ → ((∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) → 𝑎 ∈ (Fmla‘suc 𝑥)) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc ∅) → 𝑎 ∈ (Fmla‘suc ∅))))
9		suceq 6331	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑦 → suc 𝑥 = suc 𝑦)
10	9	fveq2d 6778	. . . . . . . . . 10 ⊢ (𝑥 = 𝑦 → (Fmla‘suc 𝑥) = (Fmla‘suc 𝑦))
11	10	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = 𝑦 → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) ↔ ∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑦)))
12	10	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = 𝑦 → (𝑎 ∈ (Fmla‘suc 𝑥) ↔ 𝑎 ∈ (Fmla‘suc 𝑦)))
13	11, 12	imbi12d 345	. . . . . . . 8 ⊢ (𝑥 = 𝑦 → ((∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) → 𝑎 ∈ (Fmla‘suc 𝑥)) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑦) → 𝑎 ∈ (Fmla‘suc 𝑦))))
14		suceq 6331	. . . . . . . . . . 11 ⊢ (𝑥 = suc 𝑦 → suc 𝑥 = suc suc 𝑦)
15	14	fveq2d 6778	. . . . . . . . . 10 ⊢ (𝑥 = suc 𝑦 → (Fmla‘suc 𝑥) = (Fmla‘suc suc 𝑦))
16	15	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = suc 𝑦 → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) ↔ ∀𝑔𝑖𝑎 ∈ (Fmla‘suc suc 𝑦)))
17	15	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = suc 𝑦 → (𝑎 ∈ (Fmla‘suc 𝑥) ↔ 𝑎 ∈ (Fmla‘suc suc 𝑦)))
18	16, 17	imbi12d 345	. . . . . . . 8 ⊢ (𝑥 = suc 𝑦 → ((∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) → 𝑎 ∈ (Fmla‘suc 𝑥)) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc suc 𝑦) → 𝑎 ∈ (Fmla‘suc suc 𝑦))))
19		suceq 6331	. . . . . . . . . . 11 ⊢ (𝑥 = 𝑛 → suc 𝑥 = suc 𝑛)
20	19	fveq2d 6778	. . . . . . . . . 10 ⊢ (𝑥 = 𝑛 → (Fmla‘suc 𝑥) = (Fmla‘suc 𝑛))
21	20	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = 𝑛 → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) ↔ ∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛)))
22	20	eleq2d 2824	. . . . . . . . 9 ⊢ (𝑥 = 𝑛 → (𝑎 ∈ (Fmla‘suc 𝑥) ↔ 𝑎 ∈ (Fmla‘suc 𝑛)))
23	21, 22	imbi12d 345	. . . . . . . 8 ⊢ (𝑥 = 𝑛 → ((∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑥) → 𝑎 ∈ (Fmla‘suc 𝑥)) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛) → 𝑎 ∈ (Fmla‘suc 𝑛))))
24		peano1 7735	. . . . . . . . . 10 ⊢ ∅ ∈ ω
25		df-goal 33304	. . . . . . . . . . 11 ⊢ ∀𝑔𝑖𝑎 = ⟨2o, ⟨𝑖, 𝑎⟩⟩
26		opex 5379	. . . . . . . . . . 11 ⊢ ⟨2o, ⟨𝑖, 𝑎⟩⟩ ∈ V
27	25, 26	eqeltri 2835	. . . . . . . . . 10 ⊢ ∀𝑔𝑖𝑎 ∈ V
28		isfmlasuc 33350	. . . . . . . . . 10 ⊢ ((∅ ∈ ω ∧ ∀𝑔𝑖𝑎 ∈ V) → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc ∅) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘∅) ∨ ∃𝑢 ∈ (Fmla‘∅)(∃𝑣 ∈ (Fmla‘∅)∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) ∨ ∃𝑘 ∈ ω ∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢))))
29	24, 27, 28	mp2an 689	. . . . . . . . 9 ⊢ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc ∅) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘∅) ∨ ∃𝑢 ∈ (Fmla‘∅)(∃𝑣 ∈ (Fmla‘∅)∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) ∨ ∃𝑘 ∈ ω ∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢)))
30		eqeq1 2742	. . . . . . . . . . . . 13 ⊢ (𝑥 = ∀𝑔𝑖𝑎 → (𝑥 = (𝑘∈𝑔𝑗) ↔ ∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗)))
31	30	2rexbidv 3229	. . . . . . . . . . . 12 ⊢ (𝑥 = ∀𝑔𝑖𝑎 → (∃𝑘 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑘∈𝑔𝑗) ↔ ∃𝑘 ∈ ω ∃𝑗 ∈ ω ∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗)))
32		fmla0 33344	. . . . . . . . . . . 12 ⊢ (Fmla‘∅) = {𝑥 ∈ V ∣ ∃𝑘 ∈ ω ∃𝑗 ∈ ω 𝑥 = (𝑘∈𝑔𝑗)}
33	31, 32	elrab2 3627	. . . . . . . . . . 11 ⊢ (∀𝑔𝑖𝑎 ∈ (Fmla‘∅) ↔ (∀𝑔𝑖𝑎 ∈ V ∧ ∃𝑘 ∈ ω ∃𝑗 ∈ ω ∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗)))
34	25	a1i 11	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ ω ∧ 𝑗 ∈ ω) → ∀𝑔𝑖𝑎 = ⟨2o, ⟨𝑖, 𝑎⟩⟩)
35		goel 33309	. . . . . . . . . . . . . . 15 ⊢ ((𝑘 ∈ ω ∧ 𝑗 ∈ ω) → (𝑘∈𝑔𝑗) = ⟨∅, ⟨𝑘, 𝑗⟩⟩)
36	34, 35	eqeq12d 2754	. . . . . . . . . . . . . 14 ⊢ ((𝑘 ∈ ω ∧ 𝑗 ∈ ω) → (∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗) ↔ ⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨∅, ⟨𝑘, 𝑗⟩⟩))
37		2oex 8308	. . . . . . . . . . . . . . . 16 ⊢ 2o ∈ V
38		opex 5379	. . . . . . . . . . . . . . . 16 ⊢ ⟨𝑖, 𝑎⟩ ∈ V
39	37, 38	opth 5391	. . . . . . . . . . . . . . 15 ⊢ (⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨∅, ⟨𝑘, 𝑗⟩⟩ ↔ (2o = ∅ ∧ ⟨𝑖, 𝑎⟩ = ⟨𝑘, 𝑗⟩))
40		2on0 8313	. . . . . . . . . . . . . . . . 17 ⊢ 2o ≠ ∅
41		eqneqall 2954	. . . . . . . . . . . . . . . . 17 ⊢ (2o = ∅ → (2o ≠ ∅ → 𝑎 ∈ (Fmla‘suc ∅)))
42	40, 41	mpi 20	. . . . . . . . . . . . . . . 16 ⊢ (2o = ∅ → 𝑎 ∈ (Fmla‘suc ∅))
43	42	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((2o = ∅ ∧ ⟨𝑖, 𝑎⟩ = ⟨𝑘, 𝑗⟩) → 𝑎 ∈ (Fmla‘suc ∅))
44	39, 43	sylbi 216	. . . . . . . . . . . . . 14 ⊢ (⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨∅, ⟨𝑘, 𝑗⟩⟩ → 𝑎 ∈ (Fmla‘suc ∅))
45	36, 44	syl6bi 252	. . . . . . . . . . . . 13 ⊢ ((𝑘 ∈ ω ∧ 𝑗 ∈ ω) → (∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗) → 𝑎 ∈ (Fmla‘suc ∅)))
46	45	rexlimdva 3213	. . . . . . . . . . . 12 ⊢ (𝑘 ∈ ω → (∃𝑗 ∈ ω ∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗) → 𝑎 ∈ (Fmla‘suc ∅)))
47	46	rexlimiv 3209	. . . . . . . . . . 11 ⊢ (∃𝑘 ∈ ω ∃𝑗 ∈ ω ∀𝑔𝑖𝑎 = (𝑘∈𝑔𝑗) → 𝑎 ∈ (Fmla‘suc ∅))
48	33, 47	simplbiim 505	. . . . . . . . . 10 ⊢ (∀𝑔𝑖𝑎 ∈ (Fmla‘∅) → 𝑎 ∈ (Fmla‘suc ∅))
49		gonanegoal 33314	. . . . . . . . . . . . . . . 16 ⊢ (𝑢⊼𝑔𝑣) ≠ ∀𝑔𝑖𝑎
50		eqneqall 2954	. . . . . . . . . . . . . . . 16 ⊢ ((𝑢⊼𝑔𝑣) = ∀𝑔𝑖𝑎 → ((𝑢⊼𝑔𝑣) ≠ ∀𝑔𝑖𝑎 → 𝑎 ∈ (Fmla‘suc ∅)))
51	49, 50	mpi 20	. . . . . . . . . . . . . . 15 ⊢ ((𝑢⊼𝑔𝑣) = ∀𝑔𝑖𝑎 → 𝑎 ∈ (Fmla‘suc ∅))
52	51	eqcoms 2746	. . . . . . . . . . . . . 14 ⊢ (∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) → 𝑎 ∈ (Fmla‘suc ∅))
53	52	a1i 11	. . . . . . . . . . . . 13 ⊢ ((𝑢 ∈ (Fmla‘∅) ∧ 𝑣 ∈ (Fmla‘∅)) → (∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) → 𝑎 ∈ (Fmla‘suc ∅)))
54	53	rexlimdva 3213	. . . . . . . . . . . 12 ⊢ (𝑢 ∈ (Fmla‘∅) → (∃𝑣 ∈ (Fmla‘∅)∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) → 𝑎 ∈ (Fmla‘suc ∅)))
55		df-goal 33304	. . . . . . . . . . . . . . 15 ⊢ ∀𝑔𝑘𝑢 = ⟨2o, ⟨𝑘, 𝑢⟩⟩
56	25, 55	eqeq12i 2756	. . . . . . . . . . . . . 14 ⊢ (∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢 ↔ ⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨2o, ⟨𝑘, 𝑢⟩⟩)
57	37, 38	opth 5391	. . . . . . . . . . . . . . . . 17 ⊢ (⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨2o, ⟨𝑘, 𝑢⟩⟩ ↔ (2o = 2o ∧ ⟨𝑖, 𝑎⟩ = ⟨𝑘, 𝑢⟩))
58		vex 3436	. . . . . . . . . . . . . . . . . . 19 ⊢ 𝑖 ∈ V
59		vex 3436	. . . . . . . . . . . . . . . . . . 19 ⊢ 𝑎 ∈ V
60	58, 59	opth 5391	. . . . . . . . . . . . . . . . . 18 ⊢ (⟨𝑖, 𝑎⟩ = ⟨𝑘, 𝑢⟩ ↔ (𝑖 = 𝑘 ∧ 𝑎 = 𝑢))
61		eleq1w 2821	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑢 = 𝑎 → (𝑢 ∈ (Fmla‘∅) ↔ 𝑎 ∈ (Fmla‘∅)))
62		fmlasssuc 33351	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (∅ ∈ ω → (Fmla‘∅) ⊆ (Fmla‘suc ∅))
63	24, 62	ax-mp 5	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (Fmla‘∅) ⊆ (Fmla‘suc ∅)
64	63	sseli 3917	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝑎 ∈ (Fmla‘∅) → 𝑎 ∈ (Fmla‘suc ∅))
65	61, 64	syl6bi 252	. . . . . . . . . . . . . . . . . . 19 ⊢ (𝑢 = 𝑎 → (𝑢 ∈ (Fmla‘∅) → 𝑎 ∈ (Fmla‘suc ∅)))
66	65	eqcoms 2746	. . . . . . . . . . . . . . . . . 18 ⊢ (𝑎 = 𝑢 → (𝑢 ∈ (Fmla‘∅) → 𝑎 ∈ (Fmla‘suc ∅)))
67	60, 66	simplbiim 505	. . . . . . . . . . . . . . . . 17 ⊢ (⟨𝑖, 𝑎⟩ = ⟨𝑘, 𝑢⟩ → (𝑢 ∈ (Fmla‘∅) → 𝑎 ∈ (Fmla‘suc ∅)))
68	57, 67	simplbiim 505	. . . . . . . . . . . . . . . 16 ⊢ (⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨2o, ⟨𝑘, 𝑢⟩⟩ → (𝑢 ∈ (Fmla‘∅) → 𝑎 ∈ (Fmla‘suc ∅)))
69	68	com12 32	. . . . . . . . . . . . . . 15 ⊢ (𝑢 ∈ (Fmla‘∅) → (⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨2o, ⟨𝑘, 𝑢⟩⟩ → 𝑎 ∈ (Fmla‘suc ∅)))
70	69	adantr 481	. . . . . . . . . . . . . 14 ⊢ ((𝑢 ∈ (Fmla‘∅) ∧ 𝑘 ∈ ω) → (⟨2o, ⟨𝑖, 𝑎⟩⟩ = ⟨2o, ⟨𝑘, 𝑢⟩⟩ → 𝑎 ∈ (Fmla‘suc ∅)))
71	56, 70	syl5bi 241	. . . . . . . . . . . . 13 ⊢ ((𝑢 ∈ (Fmla‘∅) ∧ 𝑘 ∈ ω) → (∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢 → 𝑎 ∈ (Fmla‘suc ∅)))
72	71	rexlimdva 3213	. . . . . . . . . . . 12 ⊢ (𝑢 ∈ (Fmla‘∅) → (∃𝑘 ∈ ω ∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢 → 𝑎 ∈ (Fmla‘suc ∅)))
73	54, 72	jaod 856	. . . . . . . . . . 11 ⊢ (𝑢 ∈ (Fmla‘∅) → ((∃𝑣 ∈ (Fmla‘∅)∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) ∨ ∃𝑘 ∈ ω ∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢) → 𝑎 ∈ (Fmla‘suc ∅)))
74	73	rexlimiv 3209	. . . . . . . . . 10 ⊢ (∃𝑢 ∈ (Fmla‘∅)(∃𝑣 ∈ (Fmla‘∅)∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) ∨ ∃𝑘 ∈ ω ∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢) → 𝑎 ∈ (Fmla‘suc ∅))
75	48, 74	jaoi 854	. . . . . . . . 9 ⊢ ((∀𝑔𝑖𝑎 ∈ (Fmla‘∅) ∨ ∃𝑢 ∈ (Fmla‘∅)(∃𝑣 ∈ (Fmla‘∅)∀𝑔𝑖𝑎 = (𝑢⊼𝑔𝑣) ∨ ∃𝑘 ∈ ω ∀𝑔𝑖𝑎 = ∀𝑔𝑘𝑢)) → 𝑎 ∈ (Fmla‘suc ∅))
76	29, 75	sylbi 216	. . . . . . . 8 ⊢ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc ∅) → 𝑎 ∈ (Fmla‘suc ∅))
77		goalrlem 33358	. . . . . . . 8 ⊢ (𝑦 ∈ ω → ((∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑦) → 𝑎 ∈ (Fmla‘suc 𝑦)) → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc suc 𝑦) → 𝑎 ∈ (Fmla‘suc suc 𝑦))))
78	8, 13, 18, 23, 76, 77	finds 7745	. . . . . . 7 ⊢ (𝑛 ∈ ω → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛) → 𝑎 ∈ (Fmla‘suc 𝑛)))
79	78	adantr 481	. . . . . 6 ⊢ ((𝑛 ∈ ω ∧ 𝑁 = suc 𝑛) → (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛) → 𝑎 ∈ (Fmla‘suc 𝑛)))
80		fveq2 6774	. . . . . . . . 9 ⊢ (𝑁 = suc 𝑛 → (Fmla‘𝑁) = (Fmla‘suc 𝑛))
81	80	eleq2d 2824	. . . . . . . 8 ⊢ (𝑁 = suc 𝑛 → (∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) ↔ ∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛)))
82	80	eleq2d 2824	. . . . . . . 8 ⊢ (𝑁 = suc 𝑛 → (𝑎 ∈ (Fmla‘𝑁) ↔ 𝑎 ∈ (Fmla‘suc 𝑛)))
83	81, 82	imbi12d 345	. . . . . . 7 ⊢ (𝑁 = suc 𝑛 → ((∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) → 𝑎 ∈ (Fmla‘𝑁)) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛) → 𝑎 ∈ (Fmla‘suc 𝑛))))
84	83	adantl 482	. . . . . 6 ⊢ ((𝑛 ∈ ω ∧ 𝑁 = suc 𝑛) → ((∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) → 𝑎 ∈ (Fmla‘𝑁)) ↔ (∀𝑔𝑖𝑎 ∈ (Fmla‘suc 𝑛) → 𝑎 ∈ (Fmla‘suc 𝑛))))
85	79, 84	mpbird 256	. . . . 5 ⊢ ((𝑛 ∈ ω ∧ 𝑁 = suc 𝑛) → (∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) → 𝑎 ∈ (Fmla‘𝑁)))
86	85	rexlimiva 3210	. . . 4 ⊢ (∃𝑛 ∈ ω 𝑁 = suc 𝑛 → (∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) → 𝑎 ∈ (Fmla‘𝑁)))
87	3, 86	syl 17	. . 3 ⊢ ((𝑁 ∈ ω ∧ 𝑁 ≠ ∅) → (∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁) → 𝑎 ∈ (Fmla‘𝑁)))
88	87	impancom 452	. 2 ⊢ ((𝑁 ∈ ω ∧ ∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁)) → (𝑁 ≠ ∅ → 𝑎 ∈ (Fmla‘𝑁)))
89	2, 88	mpd 15	1 ⊢ ((𝑁 ∈ ω ∧ ∀𝑔𝑖𝑎 ∈ (Fmla‘𝑁)) → 𝑎 ∈ (Fmla‘𝑁))

Syntax hints:   → wi 4   ↔ wb 205   ∧ wa 396   ∨ wo 844   = wceq 1539   ∈ wcel 2106   ≠ wne 2943  ∃wrex 3065  Vcvv 3432   ⊆ wss 3887  ∅c0 4256  ⟨cop 4567  suc csuc 6268  ‘cfv 6433  (class class class)co 7275  ωcom 7712  2_oc2o 8291  ∈_𝑔cgoe 33295  ⊼_𝑔cgna 33296  ∀_𝑔cgol 33297  Fmlacfmla 33299

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1913  ax-6 1971  ax-7 2011  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2154  ax-12 2171  ax-ext 2709  ax-rep 5209  ax-sep 5223  ax-nul 5230  ax-pow 5288  ax-pr 5352  ax-un 7588  ax-inf2 9399

This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2068  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2816  df-nfc 2889  df-ne 2944  df-nel 3050  df-ral 3069  df-rex 3070  df-reu 3072  df-rab 3073  df-v 3434  df-sbc 3717  df-csb 3833  df-dif 3890  df-un 3892  df-in 3894  df-ss 3904  df-pss 3906  df-nul 4257  df-if 4460  df-pw 4535  df-sn 4562  df-pr 4564  df-op 4568  df-uni 4840  df-iun 4926  df-br 5075  df-opab 5137  df-mpt 5158  df-tr 5192  df-id 5489  df-eprel 5495  df-po 5503  df-so 5504  df-fr 5544  df-we 5546  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-res 5601  df-ima 5602  df-pred 6202  df-ord 6269  df-on 6270  df-lim 6271  df-suc 6272  df-iota 6391  df-fun 6435  df-fn 6436  df-f 6437  df-f1 6438  df-fo 6439  df-f1o 6440  df-fv 6441  df-ov 7278  df-oprab 7279  df-mpo 7280  df-om 7713  df-1st 7831  df-2nd 7832  df-frecs 8097  df-wrecs 8128  df-recs 8202  df-rdg 8241  df-1o 8297  df-2o 8298  df-map 8617  df-goel 33302  df-gona 33303  df-goal 33304  df-sat 33305  df-fmla 33307

This theorem is referenced by:  fmlasucdisj  33361