Theorem nninffeq 16345

Description: Equality of two functions on ℕ_∞ which agree at every integer and at the point at infinity. From an online post by Martin Escardo. Remark: the last two hypotheses can be grouped into one, ⊢ (𝜑 → ∀𝑛 ∈ suc ω...). (Contributed by Jim Kingdon, 4-Aug-2023.)

Hypotheses

Ref	Expression
nninffeq.f	⊢ (𝜑 → 𝐹:ℕ∞⟶ℕ0)
nninffeq.g	⊢ (𝜑 → 𝐺:ℕ∞⟶ℕ0)
nninffeq.oo	⊢ (𝜑 → (𝐹‘(𝑥 ∈ ω ↦ 1o)) = (𝐺‘(𝑥 ∈ ω ↦ 1o)))
nninffeq.n	⊢ (𝜑 → ∀𝑛 ∈ ω (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))

Assertion

Ref	Expression
nninffeq	⊢ (𝜑 → 𝐹 = 𝐺)

Distinct variable groups:   𝑖,𝐹,𝑛,𝑥   𝑖,𝐺,𝑛,𝑥   𝜑,𝑖,𝑛,𝑥

Proof of Theorem nninffeq

Dummy variables 𝑧 𝑤 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		nninffeq.f	. . 3 ⊢ (𝜑 → 𝐹:ℕ∞⟶ℕ0)
2	1	ffnd 5473	. 2 ⊢ (𝜑 → 𝐹 Fn ℕ∞)
3		nninffeq.g	. . 3 ⊢ (𝜑 → 𝐺:ℕ∞⟶ℕ0)
4	3	ffnd 5473	. 2 ⊢ (𝜑 → 𝐺 Fn ℕ∞)
5		eqid 2229	. . . . . . . 8 ⊢ (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)) = (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))
6		fveq2 5626	. . . . . . . . . 10 ⊢ (𝑥 = 𝑧 → (𝐹‘𝑥) = (𝐹‘𝑧))
7		fveq2 5626	. . . . . . . . . 10 ⊢ (𝑥 = 𝑧 → (𝐺‘𝑥) = (𝐺‘𝑧))
8	6, 7	eqeq12d 2244	. . . . . . . . 9 ⊢ (𝑥 = 𝑧 → ((𝐹‘𝑥) = (𝐺‘𝑥) ↔ (𝐹‘𝑧) = (𝐺‘𝑧)))
9	8	ifbid 3624	. . . . . . . 8 ⊢ (𝑥 = 𝑧 → if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅) = if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅))
10		simpr 110	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → 𝑧 ∈ ℕ∞)
11		1onn 6664	. . . . . . . . . 10 ⊢ 1o ∈ ω
12	11	a1i 9	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → 1o ∈ ω)
13		peano1 4685	. . . . . . . . . 10 ⊢ ∅ ∈ ω
14	13	a1i 9	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ∅ ∈ ω)
15	1	ffvelcdmda 5769	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐹‘𝑧) ∈ ℕ0)
16	15	nn0zd 9563	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐹‘𝑧) ∈ ℤ)
17	3	ffvelcdmda 5769	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐺‘𝑧) ∈ ℕ0)
18	17	nn0zd 9563	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐺‘𝑧) ∈ ℤ)
19		zdceq 9518	. . . . . . . . . 10 ⊢ (((𝐹‘𝑧) ∈ ℤ ∧ (𝐺‘𝑧) ∈ ℤ) → DECID (𝐹‘𝑧) = (𝐺‘𝑧))
20	16, 18, 19	syl2anc 411	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → DECID (𝐹‘𝑧) = (𝐺‘𝑧))
21	12, 14, 20	ifcldcd 3640	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅) ∈ ω)
22	5, 9, 10, 21	fvmptd3 5727	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘𝑧) = if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅))
23		1lt2o 6586	. . . . . . . . . . . . 13 ⊢ 1o ∈ 2o
24	23	a1i 9	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → 1o ∈ 2o)
25		0lt2o 6585	. . . . . . . . . . . . 13 ⊢ ∅ ∈ 2o
26	25	a1i 9	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → ∅ ∈ 2o)
27	1	ffvelcdmda 5769	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐹‘𝑥) ∈ ℕ0)
28	27	nn0zd 9563	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐹‘𝑥) ∈ ℤ)
29	3	ffvelcdmda 5769	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐺‘𝑥) ∈ ℕ0)
30	29	nn0zd 9563	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐺‘𝑥) ∈ ℤ)
31		zdceq 9518	. . . . . . . . . . . . 13 ⊢ (((𝐹‘𝑥) ∈ ℤ ∧ (𝐺‘𝑥) ∈ ℤ) → DECID (𝐹‘𝑥) = (𝐺‘𝑥))
32	28, 30, 31	syl2anc 411	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → DECID (𝐹‘𝑥) = (𝐺‘𝑥))
33	24, 26, 32	ifcldcd 3640	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅) ∈ 2o)
34	33	fmpttd 5789	. . . . . . . . . 10 ⊢ (𝜑 → (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)):ℕ∞⟶2o)
35		2onn 6665	. . . . . . . . . . . 12 ⊢ 2o ∈ ω
36	35	elexi 2812	. . . . . . . . . . 11 ⊢ 2o ∈ V
37		nninfex 7284	. . . . . . . . . . 11 ⊢ ℕ∞ ∈ V
38	36, 37	elmap 6822	. . . . . . . . . 10 ⊢ ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)) ∈ (2o ↑𝑚 ℕ∞) ↔ (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)):ℕ∞⟶2o)
39	34, 38	sylibr 134	. . . . . . . . 9 ⊢ (𝜑 → (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)) ∈ (2o ↑𝑚 ℕ∞))
40		fveq2 5626	. . . . . . . . . . . . 13 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → (𝐹‘𝑥) = (𝐹‘(𝑤 ∈ ω ↦ 1o)))
41		fveq2 5626	. . . . . . . . . . . . 13 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → (𝐺‘𝑥) = (𝐺‘(𝑤 ∈ ω ↦ 1o)))
42	40, 41	eqeq12d 2244	. . . . . . . . . . . 12 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → ((𝐹‘𝑥) = (𝐺‘𝑥) ↔ (𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o))))
43	42	ifbid 3624	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅) = if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅))
44		infnninf 7287	. . . . . . . . . . . 12 ⊢ (𝑤 ∈ ω ↦ 1o) ∈ ℕ∞
45	44	a1i 9	. . . . . . . . . . 11 ⊢ (𝜑 → (𝑤 ∈ ω ↦ 1o) ∈ ℕ∞)
46		nninffeq.oo	. . . . . . . . . . . . . 14 ⊢ (𝜑 → (𝐹‘(𝑥 ∈ ω ↦ 1o)) = (𝐺‘(𝑥 ∈ ω ↦ 1o)))
47		eqidd 2230	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = 𝑤 → 1o = 1o)
48	47	cbvmptv 4179	. . . . . . . . . . . . . . 15 ⊢ (𝑥 ∈ ω ↦ 1o) = (𝑤 ∈ ω ↦ 1o)
49	48	fveq2i 5629	. . . . . . . . . . . . . 14 ⊢ (𝐹‘(𝑥 ∈ ω ↦ 1o)) = (𝐹‘(𝑤 ∈ ω ↦ 1o))
50	48	fveq2i 5629	. . . . . . . . . . . . . 14 ⊢ (𝐺‘(𝑥 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o))
51	46, 49, 50	3eqtr3g 2285	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)))
52	51	iftrued 3609	. . . . . . . . . . . 12 ⊢ (𝜑 → if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅) = 1o)
53	52, 11	eqeltrdi 2320	. . . . . . . . . . 11 ⊢ (𝜑 → if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅) ∈ ω)
54	5, 43, 45, 53	fvmptd3 5727	. . . . . . . . . 10 ⊢ (𝜑 → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑤 ∈ ω ↦ 1o)) = if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅))
55	54, 52	eqtrd 2262	. . . . . . . . 9 ⊢ (𝜑 → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑤 ∈ ω ↦ 1o)) = 1o)
56		nninffeq.n	. . . . . . . . . 10 ⊢ (𝜑 → ∀𝑛 ∈ ω (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))
57		fveq2 5626	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) → (𝐹‘𝑥) = (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))
58		fveq2 5626	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) → (𝐺‘𝑥) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))
59	57, 58	eqeq12d 2244	. . . . . . . . . . . . . . 15 ⊢ (𝑥 = (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) → ((𝐹‘𝑥) = (𝐺‘𝑥) ↔ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))))
60	59	ifbid 3624	. . . . . . . . . . . . . 14 ⊢ (𝑥 = (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) → if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅) = if((𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))), 1o, ∅))
61		nnnninf 7289	. . . . . . . . . . . . . . 15 ⊢ (𝑛 ∈ ω → (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) ∈ ℕ∞)
62	61	ad2antlr 489	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑛 ∈ ω) ∧ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))) → (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) ∈ ℕ∞)
63		simpr 110	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑛 ∈ ω) ∧ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))) → (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))
64	63	iftrued 3609	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑛 ∈ ω) ∧ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))) → if((𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))), 1o, ∅) = 1o)
65	64, 11	eqeltrdi 2320	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑛 ∈ ω) ∧ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))) → if((𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))), 1o, ∅) ∈ ω)
66	5, 60, 62, 65	fvmptd3 5727	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑛 ∈ ω) ∧ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = if((𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))), 1o, ∅))
67	66, 64	eqtrd 2262	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑛 ∈ ω) ∧ (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)))) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = 1o)
68	67	ex 115	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑛 ∈ ω) → ((𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = 1o))
69	68	ralimdva 2597	. . . . . . . . . 10 ⊢ (𝜑 → (∀𝑛 ∈ ω (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) → ∀𝑛 ∈ ω ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = 1o))
70	56, 69	mpd 13	. . . . . . . . 9 ⊢ (𝜑 → ∀𝑛 ∈ ω ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))) = 1o)
71	39, 55, 70	nninfall 16334	. . . . . . . 8 ⊢ (𝜑 → ∀𝑧 ∈ ℕ∞ ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘𝑧) = 1o)
72	71	r19.21bi 2618	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘𝑧) = 1o)
73	22, 72	eqtr3d 2264	. . . . . 6 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅) = 1o)
74	73	adantr 276	. . . . 5 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅) = 1o)
75		simpr 110	. . . . . 6 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → ¬ (𝐹‘𝑧) = (𝐺‘𝑧))
76	75	iffalsed 3612	. . . . 5 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅) = ∅)
77	74, 76	eqtr3d 2264	. . . 4 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → 1o = ∅)
78		1n0 6576	. . . . . 6 ⊢ 1o ≠ ∅
79	78	neii 2402	. . . . 5 ⊢ ¬ 1o = ∅
80	79	a1i 9	. . . 4 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → ¬ 1o = ∅)
81	77, 80	pm2.65da 665	. . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ¬ ¬ (𝐹‘𝑧) = (𝐺‘𝑧))
82		exmiddc 841	. . . 4 ⊢ (DECID (𝐹‘𝑧) = (𝐺‘𝑧) → ((𝐹‘𝑧) = (𝐺‘𝑧) ∨ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)))
83	20, 82	syl 14	. . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ((𝐹‘𝑧) = (𝐺‘𝑧) ∨ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)))
84	81, 83	ecased 1383	. 2 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐹‘𝑧) = (𝐺‘𝑧))
85	2, 4, 84	eqfnfvd 5734	1 ⊢ (𝜑 → 𝐹 = 𝐺)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 104   ∨ wo 713  DECID wdc 839   = wceq 1395   ∈ wcel 2200  ∀wral 2508  ∅c0 3491  ifcif 3602   ↦ cmpt 4144  ωcom 4681  ⟶wf 5313  ‘cfv 5317  (class class class)co 6000  1_oc1o 6553  2_oc2o 6554   ↑_𝑚 cmap 6793  ℕ_∞xnninf 7282  ℕ₀cn0 9365  ℤcz 9442

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4201  ax-nul 4209  ax-pow 4257  ax-pr 4292  ax-un 4523  ax-setind 4628  ax-iinf 4679  ax-cnex 8086  ax-resscn 8087  ax-1cn 8088  ax-1re 8089  ax-icn 8090  ax-addcl 8091  ax-addrcl 8092  ax-mulcl 8093  ax-addcom 8095  ax-addass 8097  ax-distr 8099  ax-i2m1 8100  ax-0lt1 8101  ax-0id 8103  ax-rnegex 8104  ax-cnre 8106  ax-pre-ltirr 8107  ax-pre-ltwlin 8108  ax-pre-lttrn 8109  ax-pre-ltadd 8111

This theorem depends on definitions:  df-bi 117  df-dc 840  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-reu 2515  df-rab 2517  df-v 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-if 3603  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3888  df-int 3923  df-br 4083  df-opab 4145  df-mpt 4146  df-tr 4182  df-id 4383  df-iord 4456  df-on 4458  df-suc 4461  df-iom 4682  df-xp 4724  df-rel 4725  df-cnv 4726  df-co 4727  df-dm 4728  df-rn 4729  df-res 4730  df-ima 4731  df-iota 5277  df-fun 5319  df-fn 5320  df-f 5321  df-fv 5325  df-riota 5953  df-ov 6003  df-oprab 6004  df-mpo 6005  df-1o 6560  df-2o 6561  df-map 6795  df-nninf 7283  df-pnf 8179  df-mnf 8180  df-xr 8181  df-ltxr 8182  df-le 8183  df-sub 8315  df-neg 8316  df-inn 9107  df-n0 9366  df-z 9443

This theorem is referenced by: (None)