Theorem nninffeq 15066

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 5378	. 2 ⊢ (𝜑 → 𝐹 Fn ℕ∞)
3		nninffeq.g	. . 3 ⊢ (𝜑 → 𝐺:ℕ∞⟶ℕ0)
4	3	ffnd 5378	. 2 ⊢ (𝜑 → 𝐺 Fn ℕ∞)
5		eqid 2187	. . . . . . . 8 ⊢ (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)) = (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))
6		fveq2 5527	. . . . . . . . . 10 ⊢ (𝑥 = 𝑧 → (𝐹‘𝑥) = (𝐹‘𝑧))
7		fveq2 5527	. . . . . . . . . 10 ⊢ (𝑥 = 𝑧 → (𝐺‘𝑥) = (𝐺‘𝑧))
8	6, 7	eqeq12d 2202	. . . . . . . . 9 ⊢ (𝑥 = 𝑧 → ((𝐹‘𝑥) = (𝐺‘𝑥) ↔ (𝐹‘𝑧) = (𝐺‘𝑧)))
9	8	ifbid 3567	. . . . . . . 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 6535	. . . . . . . . . 10 ⊢ 1o ∈ ω
12	11	a1i 9	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → 1o ∈ ω)
13		peano1 4605	. . . . . . . . . 10 ⊢ ∅ ∈ ω
14	13	a1i 9	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ∅ ∈ ω)
15	1	ffvelcdmda 5664	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐹‘𝑧) ∈ ℕ0)
16	15	nn0zd 9387	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐹‘𝑧) ∈ ℤ)
17	3	ffvelcdmda 5664	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐺‘𝑧) ∈ ℕ0)
18	17	nn0zd 9387	. . . . . . . . . 10 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐺‘𝑧) ∈ ℤ)
19		zdceq 9342	. . . . . . . . . 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 3582	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅) ∈ ω)
22	5, 9, 10, 21	fvmptd3 5622	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘𝑧) = if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅))
23		1lt2o 6457	. . . . . . . . . . . . 13 ⊢ 1o ∈ 2o
24	23	a1i 9	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → 1o ∈ 2o)
25		0lt2o 6456	. . . . . . . . . . . . 13 ⊢ ∅ ∈ 2o
26	25	a1i 9	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → ∅ ∈ 2o)
27	1	ffvelcdmda 5664	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐹‘𝑥) ∈ ℕ0)
28	27	nn0zd 9387	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐹‘𝑥) ∈ ℤ)
29	3	ffvelcdmda 5664	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐺‘𝑥) ∈ ℕ0)
30	29	nn0zd 9387	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → (𝐺‘𝑥) ∈ ℤ)
31		zdceq 9342	. . . . . . . . . . . . 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 3582	. . . . . . . . . . 11 ⊢ ((𝜑 ∧ 𝑥 ∈ ℕ∞) → if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅) ∈ 2o)
34	33	fmpttd 5684	. . . . . . . . . 10 ⊢ (𝜑 → (𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅)):ℕ∞⟶2o)
35		2onn 6536	. . . . . . . . . . . 12 ⊢ 2o ∈ ω
36	35	elexi 2761	. . . . . . . . . . 11 ⊢ 2o ∈ V
37		nninfex 7134	. . . . . . . . . . 11 ⊢ ℕ∞ ∈ V
38	36, 37	elmap 6691	. . . . . . . . . 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 5527	. . . . . . . . . . . . 13 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → (𝐹‘𝑥) = (𝐹‘(𝑤 ∈ ω ↦ 1o)))
41		fveq2 5527	. . . . . . . . . . . . 13 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → (𝐺‘𝑥) = (𝐺‘(𝑤 ∈ ω ↦ 1o)))
42	40, 41	eqeq12d 2202	. . . . . . . . . . . 12 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → ((𝐹‘𝑥) = (𝐺‘𝑥) ↔ (𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o))))
43	42	ifbid 3567	. . . . . . . . . . 11 ⊢ (𝑥 = (𝑤 ∈ ω ↦ 1o) → if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅) = if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅))
44		infnninf 7136	. . . . . . . . . . . 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 2188	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = 𝑤 → 1o = 1o)
48	47	cbvmptv 4111	. . . . . . . . . . . . . . 15 ⊢ (𝑥 ∈ ω ↦ 1o) = (𝑤 ∈ ω ↦ 1o)
49	48	fveq2i 5530	. . . . . . . . . . . . . 14 ⊢ (𝐹‘(𝑥 ∈ ω ↦ 1o)) = (𝐹‘(𝑤 ∈ ω ↦ 1o))
50	48	fveq2i 5530	. . . . . . . . . . . . . 14 ⊢ (𝐺‘(𝑥 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o))
51	46, 49, 50	3eqtr3g 2243	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)))
52	51	iftrued 3553	. . . . . . . . . . . 12 ⊢ (𝜑 → if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅) = 1o)
53	52, 11	eqeltrdi 2278	. . . . . . . . . . 11 ⊢ (𝜑 → if((𝐹‘(𝑤 ∈ ω ↦ 1o)) = (𝐺‘(𝑤 ∈ ω ↦ 1o)), 1o, ∅) ∈ ω)
54	5, 43, 45, 53	fvmptd3 5622	. . . . . . . . . 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 2220	. . . . . . . . 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 5527	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) → (𝐹‘𝑥) = (𝐹‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))
58		fveq2 5527	. . . . . . . . . . . . . . . 16 ⊢ (𝑥 = (𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅)) → (𝐺‘𝑥) = (𝐺‘(𝑖 ∈ ω ↦ if(𝑖 ∈ 𝑛, 1o, ∅))))
59	57, 58	eqeq12d 2202	. . . . . . . . . . . . . . 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 3567	. . . . . . . . . . . . . 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 7138	. . . . . . . . . . . . . . 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 3553	. . . . . . . . . . . . . . 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 2278	. . . . . . . . . . . . . 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 5622	. . . . . . . . . . . . 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 2220	. . . . . . . . . . . 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 2554	. . . . . . . . . 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 15055	. . . . . . . 8 ⊢ (𝜑 → ∀𝑧 ∈ ℕ∞ ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘𝑧) = 1o)
72	71	r19.21bi 2575	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ((𝑥 ∈ ℕ∞ ↦ if((𝐹‘𝑥) = (𝐺‘𝑥), 1o, ∅))‘𝑧) = 1o)
73	22, 72	eqtr3d 2222	. . . . . 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 3556	. . . . 5 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → if((𝐹‘𝑧) = (𝐺‘𝑧), 1o, ∅) = ∅)
77	74, 76	eqtr3d 2222	. . . 4 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → 1o = ∅)
78		1n0 6447	. . . . . 6 ⊢ 1o ≠ ∅
79	78	neii 2359	. . . . 5 ⊢ ¬ 1o = ∅
80	79	a1i 9	. . . 4 ⊢ (((𝜑 ∧ 𝑧 ∈ ℕ∞) ∧ ¬ (𝐹‘𝑧) = (𝐺‘𝑧)) → ¬ 1o = ∅)
81	77, 80	pm2.65da 662	. . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → ¬ ¬ (𝐹‘𝑧) = (𝐺‘𝑧))
82		exmiddc 837	. . . 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 1359	. 2 ⊢ ((𝜑 ∧ 𝑧 ∈ ℕ∞) → (𝐹‘𝑧) = (𝐺‘𝑧))
85	2, 4, 84	eqfnfvd 5629	1 ⊢ (𝜑 → 𝐹 = 𝐺)

Syntax hints:  ¬ wn 3   → wi 4   ∧ wa 104   ∨ wo 709  DECID wdc 835   = wceq 1363   ∈ wcel 2158  ∀wral 2465  ∅c0 3434  ifcif 3546   ↦ cmpt 4076  ωcom 4601  ⟶wf 5224  ‘cfv 5228  (class class class)co 5888  1_oc1o 6424  2_oc2o 6425   ↑_𝑚 cmap 6662  ℕ_∞xnninf 7132  ℕ₀cn0 9190  ℤcz 9267

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 615  ax-in2 616  ax-io 710  ax-5 1457  ax-7 1458  ax-gen 1459  ax-ie1 1503  ax-ie2 1504  ax-8 1514  ax-10 1515  ax-11 1516  ax-i12 1517  ax-bndl 1519  ax-4 1520  ax-17 1536  ax-i9 1540  ax-ial 1544  ax-i5r 1545  ax-13 2160  ax-14 2161  ax-ext 2169  ax-sep 4133  ax-nul 4141  ax-pow 4186  ax-pr 4221  ax-un 4445  ax-setind 4548  ax-iinf 4599  ax-cnex 7916  ax-resscn 7917  ax-1cn 7918  ax-1re 7919  ax-icn 7920  ax-addcl 7921  ax-addrcl 7922  ax-mulcl 7923  ax-addcom 7925  ax-addass 7927  ax-distr 7929  ax-i2m1 7930  ax-0lt1 7931  ax-0id 7933  ax-rnegex 7934  ax-cnre 7936  ax-pre-ltirr 7937  ax-pre-ltwlin 7938  ax-pre-lttrn 7939  ax-pre-ltadd 7941

This theorem depends on definitions:  df-bi 117  df-dc 836  df-3or 980  df-3an 981  df-tru 1366  df-fal 1369  df-nf 1471  df-sb 1773  df-eu 2039  df-mo 2040  df-clab 2174  df-cleq 2180  df-clel 2183  df-nfc 2318  df-ne 2358  df-nel 2453  df-ral 2470  df-rex 2471  df-reu 2472  df-rab 2474  df-v 2751  df-sbc 2975  df-csb 3070  df-dif 3143  df-un 3145  df-in 3147  df-ss 3154  df-nul 3435  df-if 3547  df-pw 3589  df-sn 3610  df-pr 3611  df-op 3613  df-uni 3822  df-int 3857  df-br 4016  df-opab 4077  df-mpt 4078  df-tr 4114  df-id 4305  df-iord 4378  df-on 4380  df-suc 4383  df-iom 4602  df-xp 4644  df-rel 4645  df-cnv 4646  df-co 4647  df-dm 4648  df-rn 4649  df-res 4650  df-ima 4651  df-iota 5190  df-fun 5230  df-fn 5231  df-f 5232  df-fv 5236  df-riota 5844  df-ov 5891  df-oprab 5892  df-mpo 5893  df-1o 6431  df-2o 6432  df-map 6664  df-nninf 7133  df-pnf 8008  df-mnf 8009  df-xr 8010  df-ltxr 8011  df-le 8012  df-sub 8144  df-neg 8145  df-inn 8934  df-n0 9191  df-z 9268

This theorem is referenced by: (None)