Theorem pi1coghm 22861

Description: The mapping 𝐺 between fundamental groups is a group homomorphism. (Contributed by Mario Carneiro, 10-Aug-2015.) (Revised by Mario Carneiro, 23-Dec-2016.)

Hypotheses

Ref	Expression
pi1co.p	⊢ 𝑃 = (𝐽 π1 𝐴)
pi1co.q	⊢ 𝑄 = (𝐾 π1 𝐵)
pi1co.v	⊢ 𝑉 = (Base‘𝑃)
pi1co.g	⊢ 𝐺 = ran (𝑔 ∈ ∪ 𝑉 ↦ ⟨[𝑔]( ≃ph‘𝐽), [(𝐹 ∘ 𝑔)]( ≃ph‘𝐾)⟩)
pi1co.j	⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
pi1co.f	⊢ (𝜑 → 𝐹 ∈ (𝐽 Cn 𝐾))
pi1co.a	⊢ (𝜑 → 𝐴 ∈ 𝑋)
pi1co.b	⊢ (𝜑 → (𝐹‘𝐴) = 𝐵)

Assertion

Ref	Expression
pi1coghm	⊢ (𝜑 → 𝐺 ∈ (𝑃 GrpHom 𝑄))

Distinct variable groups:   𝐴,𝑔   𝑔,𝐹   𝑔,𝐽   𝜑,𝑔   𝑔,𝐾   𝑃,𝑔   𝑄,𝑔   𝑔,𝑉

Allowed substitution hints:   𝐵(𝑔)   𝐺(𝑔)   𝑋(𝑔)

Proof of Theorem pi1coghm

Dummy variables ℎ 𝑓 𝑧 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		pi1co.j	. . . 4 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋))
2		pi1co.a	. . . 4 ⊢ (𝜑 → 𝐴 ∈ 𝑋)
3		pi1co.p	. . . . 5 ⊢ 𝑃 = (𝐽 π1 𝐴)
4	3	pi1grp 22850	. . . 4 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐴 ∈ 𝑋) → 𝑃 ∈ Grp)
5	1, 2, 4	syl2anc 693	. . 3 ⊢ (𝜑 → 𝑃 ∈ Grp)
6		pi1co.f	. . . . . 6 ⊢ (𝜑 → 𝐹 ∈ (𝐽 Cn 𝐾))
7		cntop2 21045	. . . . . 6 ⊢ (𝐹 ∈ (𝐽 Cn 𝐾) → 𝐾 ∈ Top)
8	6, 7	syl 17	. . . . 5 ⊢ (𝜑 → 𝐾 ∈ Top)
9		eqid 2622	. . . . . 6 ⊢ ∪ 𝐾 = ∪ 𝐾
10	9	toptopon 20722	. . . . 5 ⊢ (𝐾 ∈ Top ↔ 𝐾 ∈ (TopOn‘∪ 𝐾))
11	8, 10	sylib 208	. . . 4 ⊢ (𝜑 → 𝐾 ∈ (TopOn‘∪ 𝐾))
12		pi1co.b	. . . . 5 ⊢ (𝜑 → (𝐹‘𝐴) = 𝐵)
13		cnf2 21053	. . . . . . 7 ⊢ ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘∪ 𝐾) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹:𝑋⟶∪ 𝐾)
14	1, 11, 6, 13	syl3anc 1326	. . . . . 6 ⊢ (𝜑 → 𝐹:𝑋⟶∪ 𝐾)
15	14, 2	ffvelrnd 6360	. . . . 5 ⊢ (𝜑 → (𝐹‘𝐴) ∈ ∪ 𝐾)
16	12, 15	eqeltrrd 2702	. . . 4 ⊢ (𝜑 → 𝐵 ∈ ∪ 𝐾)
17		pi1co.q	. . . . 5 ⊢ 𝑄 = (𝐾 π1 𝐵)
18	17	pi1grp 22850	. . . 4 ⊢ ((𝐾 ∈ (TopOn‘∪ 𝐾) ∧ 𝐵 ∈ ∪ 𝐾) → 𝑄 ∈ Grp)
19	11, 16, 18	syl2anc 693	. . 3 ⊢ (𝜑 → 𝑄 ∈ Grp)
20	5, 19	jca 554	. 2 ⊢ (𝜑 → (𝑃 ∈ Grp ∧ 𝑄 ∈ Grp))
21		pi1co.v	. . . 4 ⊢ 𝑉 = (Base‘𝑃)
22		pi1co.g	. . . 4 ⊢ 𝐺 = ran (𝑔 ∈ ∪ 𝑉 ↦ ⟨[𝑔]( ≃ph‘𝐽), [(𝐹 ∘ 𝑔)]( ≃ph‘𝐾)⟩)
23	3, 17, 21, 22, 1, 6, 2, 12	pi1cof 22859	. . 3 ⊢ (𝜑 → 𝐺:𝑉⟶(Base‘𝑄))
24	21	a1i 11	. . . . . . . 8 ⊢ (𝜑 → 𝑉 = (Base‘𝑃))
25	3, 1, 2, 24	pi1bas2 22841	. . . . . . 7 ⊢ (𝜑 → 𝑉 = (∪ 𝑉 / ( ≃ph‘𝐽)))
26	25	eleq2d 2687	. . . . . 6 ⊢ (𝜑 → (𝑦 ∈ 𝑉 ↔ 𝑦 ∈ (∪ 𝑉 / ( ≃ph‘𝐽))))
27	26	biimpa 501	. . . . 5 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑉) → 𝑦 ∈ (∪ 𝑉 / ( ≃ph‘𝐽)))
28		eqid 2622	. . . . . 6 ⊢ (∪ 𝑉 / ( ≃ph‘𝐽)) = (∪ 𝑉 / ( ≃ph‘𝐽))
29		oveq1 6657	. . . . . . . . 9 ⊢ ([𝑓]( ≃ph‘𝐽) = 𝑦 → ([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧) = (𝑦(+g‘𝑃)𝑧))
30	29	fveq2d 6195	. . . . . . . 8 ⊢ ([𝑓]( ≃ph‘𝐽) = 𝑦 → (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = (𝐺‘(𝑦(+g‘𝑃)𝑧)))
31		fveq2 6191	. . . . . . . . 9 ⊢ ([𝑓]( ≃ph‘𝐽) = 𝑦 → (𝐺‘[𝑓]( ≃ph‘𝐽)) = (𝐺‘𝑦))
32	31	oveq1d 6665	. . . . . . . 8 ⊢ ([𝑓]( ≃ph‘𝐽) = 𝑦 → ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧)))
33	30, 32	eqeq12d 2637	. . . . . . 7 ⊢ ([𝑓]( ≃ph‘𝐽) = 𝑦 → ((𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)) ↔ (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧))))
34	33	ralbidv 2986	. . . . . 6 ⊢ ([𝑓]( ≃ph‘𝐽) = 𝑦 → (∀𝑧 ∈ 𝑉 (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)) ↔ ∀𝑧 ∈ 𝑉 (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧))))
35		oveq2 6658	. . . . . . . . . . 11 ⊢ ([ℎ]( ≃ph‘𝐽) = 𝑧 → ([𝑓]( ≃ph‘𝐽)(+g‘𝑃)[ℎ]( ≃ph‘𝐽)) = ([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧))
36	35	fveq2d 6195	. . . . . . . . . 10 ⊢ ([ℎ]( ≃ph‘𝐽) = 𝑧 → (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)[ℎ]( ≃ph‘𝐽))) = (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)))
37		fveq2 6191	. . . . . . . . . . 11 ⊢ ([ℎ]( ≃ph‘𝐽) = 𝑧 → (𝐺‘[ℎ]( ≃ph‘𝐽)) = (𝐺‘𝑧))
38	37	oveq2d 6666	. . . . . . . . . 10 ⊢ ([ℎ]( ≃ph‘𝐽) = 𝑧 → ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘[ℎ]( ≃ph‘𝐽))) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)))
39	36, 38	eqeq12d 2637	. . . . . . . . 9 ⊢ ([ℎ]( ≃ph‘𝐽) = 𝑧 → ((𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)[ℎ]( ≃ph‘𝐽))) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘[ℎ]( ≃ph‘𝐽))) ↔ (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧))))
40	3, 1, 2, 24	pi1eluni 22842	. . . . . . . . . . . . . . . 16 ⊢ (𝜑 → (𝑓 ∈ ∪ 𝑉 ↔ (𝑓 ∈ (II Cn 𝐽) ∧ (𝑓‘0) = 𝐴 ∧ (𝑓‘1) = 𝐴)))
41	40	biimpa 501	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝑓 ∈ (II Cn 𝐽) ∧ (𝑓‘0) = 𝐴 ∧ (𝑓‘1) = 𝐴))
42	41	simp1d 1073	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝑓 ∈ (II Cn 𝐽))
43	42	adantr 481	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝑓 ∈ (II Cn 𝐽))
44	1	adantr 481	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝐽 ∈ (TopOn‘𝑋))
45	2	adantr 481	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝐴 ∈ 𝑋)
46	21	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝑉 = (Base‘𝑃))
47	3, 44, 45, 46	pi1eluni 22842	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (ℎ ∈ ∪ 𝑉 ↔ (ℎ ∈ (II Cn 𝐽) ∧ (ℎ‘0) = 𝐴 ∧ (ℎ‘1) = 𝐴)))
48	47	biimpa 501	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (ℎ ∈ (II Cn 𝐽) ∧ (ℎ‘0) = 𝐴 ∧ (ℎ‘1) = 𝐴))
49	48	simp1d 1073	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ℎ ∈ (II Cn 𝐽))
50	41	simp3d 1075	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝑓‘1) = 𝐴)
51	50	adantr 481	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝑓‘1) = 𝐴)
52	48	simp2d 1074	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (ℎ‘0) = 𝐴)
53	51, 52	eqtr4d 2659	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝑓‘1) = (ℎ‘0))
54	6	ad2antrr 762	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝐹 ∈ (𝐽 Cn 𝐾))
55	43, 49, 53, 54	copco 22818	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹 ∘ (𝑓(*𝑝‘𝐽)ℎ)) = ((𝐹 ∘ 𝑓)(*𝑝‘𝐾)(𝐹 ∘ ℎ)))
56	55	eceq1d 7783	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → [(𝐹 ∘ (𝑓(*𝑝‘𝐽)ℎ))]( ≃ph‘𝐾) = [((𝐹 ∘ 𝑓)(*𝑝‘𝐾)(𝐹 ∘ ℎ))]( ≃ph‘𝐾))
57	43, 49, 53	pcocn 22817	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝑓(*𝑝‘𝐽)ℎ) ∈ (II Cn 𝐽))
58	43, 49	pco0 22814	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝑓(*𝑝‘𝐽)ℎ)‘0) = (𝑓‘0))
59	41	simp2d 1074	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝑓‘0) = 𝐴)
60	59	adantr 481	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝑓‘0) = 𝐴)
61	58, 60	eqtrd 2656	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝑓(*𝑝‘𝐽)ℎ)‘0) = 𝐴)
62	43, 49	pco1 22815	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝑓(*𝑝‘𝐽)ℎ)‘1) = (ℎ‘1))
63	48	simp3d 1075	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (ℎ‘1) = 𝐴)
64	62, 63	eqtrd 2656	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝑓(*𝑝‘𝐽)ℎ)‘1) = 𝐴)
65	1	ad2antrr 762	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝐽 ∈ (TopOn‘𝑋))
66	2	ad2antrr 762	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝐴 ∈ 𝑋)
67	21	a1i 11	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝑉 = (Base‘𝑃))
68	3, 65, 66, 67	pi1eluni 22842	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝑓(*𝑝‘𝐽)ℎ) ∈ ∪ 𝑉 ↔ ((𝑓(*𝑝‘𝐽)ℎ) ∈ (II Cn 𝐽) ∧ ((𝑓(*𝑝‘𝐽)ℎ)‘0) = 𝐴 ∧ ((𝑓(*𝑝‘𝐽)ℎ)‘1) = 𝐴)))
69	57, 61, 64, 68	mpbir3and 1245	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝑓(*𝑝‘𝐽)ℎ) ∈ ∪ 𝑉)
70	3, 17, 21, 22, 1, 6, 2, 12	pi1coval 22860	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ (𝑓(*𝑝‘𝐽)ℎ) ∈ ∪ 𝑉) → (𝐺‘[(𝑓(*𝑝‘𝐽)ℎ)]( ≃ph‘𝐽)) = [(𝐹 ∘ (𝑓(*𝑝‘𝐽)ℎ))]( ≃ph‘𝐾))
71	70	adantlr 751	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ (𝑓(*𝑝‘𝐽)ℎ) ∈ ∪ 𝑉) → (𝐺‘[(𝑓(*𝑝‘𝐽)ℎ)]( ≃ph‘𝐽)) = [(𝐹 ∘ (𝑓(*𝑝‘𝐽)ℎ))]( ≃ph‘𝐾))
72	69, 71	syldan 487	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘[(𝑓(*𝑝‘𝐽)ℎ)]( ≃ph‘𝐽)) = [(𝐹 ∘ (𝑓(*𝑝‘𝐽)ℎ))]( ≃ph‘𝐾))
73		eqid 2622	. . . . . . . . . . . 12 ⊢ (Base‘𝑄) = (Base‘𝑄)
74	11	ad2antrr 762	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝐾 ∈ (TopOn‘∪ 𝐾))
75	16	ad2antrr 762	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝐵 ∈ ∪ 𝐾)
76		eqid 2622	. . . . . . . . . . . 12 ⊢ (+g‘𝑄) = (+g‘𝑄)
77	6	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝐹 ∈ (𝐽 Cn 𝐾))
78		cnco 21070	. . . . . . . . . . . . . . 15 ⊢ ((𝑓 ∈ (II Cn 𝐽) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹 ∘ 𝑓) ∈ (II Cn 𝐾))
79	42, 77, 78	syl2anc 693	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝐹 ∘ 𝑓) ∈ (II Cn 𝐾))
80		iitopon 22682	. . . . . . . . . . . . . . . . . 18 ⊢ II ∈ (TopOn‘(0[,]1))
81	80	a1i 11	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → II ∈ (TopOn‘(0[,]1)))
82		cnf2 21053	. . . . . . . . . . . . . . . . 17 ⊢ ((II ∈ (TopOn‘(0[,]1)) ∧ 𝐽 ∈ (TopOn‘𝑋) ∧ 𝑓 ∈ (II Cn 𝐽)) → 𝑓:(0[,]1)⟶𝑋)
83	81, 44, 42, 82	syl3anc 1326	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝑓:(0[,]1)⟶𝑋)
84		0elunit 12290	. . . . . . . . . . . . . . . 16 ⊢ 0 ∈ (0[,]1)
85		fvco3 6275	. . . . . . . . . . . . . . . 16 ⊢ ((𝑓:(0[,]1)⟶𝑋 ∧ 0 ∈ (0[,]1)) → ((𝐹 ∘ 𝑓)‘0) = (𝐹‘(𝑓‘0)))
86	83, 84, 85	sylancl 694	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ((𝐹 ∘ 𝑓)‘0) = (𝐹‘(𝑓‘0)))
87	59	fveq2d 6195	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝐹‘(𝑓‘0)) = (𝐹‘𝐴))
88	12	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝐹‘𝐴) = 𝐵)
89	86, 87, 88	3eqtrd 2660	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ((𝐹 ∘ 𝑓)‘0) = 𝐵)
90		1elunit 12291	. . . . . . . . . . . . . . . 16 ⊢ 1 ∈ (0[,]1)
91		fvco3 6275	. . . . . . . . . . . . . . . 16 ⊢ ((𝑓:(0[,]1)⟶𝑋 ∧ 1 ∈ (0[,]1)) → ((𝐹 ∘ 𝑓)‘1) = (𝐹‘(𝑓‘1)))
92	83, 90, 91	sylancl 694	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ((𝐹 ∘ 𝑓)‘1) = (𝐹‘(𝑓‘1)))
93	50	fveq2d 6195	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝐹‘(𝑓‘1)) = (𝐹‘𝐴))
94	92, 93, 88	3eqtrd 2660	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ((𝐹 ∘ 𝑓)‘1) = 𝐵)
95	11	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝐾 ∈ (TopOn‘∪ 𝐾))
96	16	adantr 481	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝐵 ∈ ∪ 𝐾)
97		eqidd 2623	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (Base‘𝑄) = (Base‘𝑄))
98	17, 95, 96, 97	pi1eluni 22842	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ((𝐹 ∘ 𝑓) ∈ ∪ (Base‘𝑄) ↔ ((𝐹 ∘ 𝑓) ∈ (II Cn 𝐾) ∧ ((𝐹 ∘ 𝑓)‘0) = 𝐵 ∧ ((𝐹 ∘ 𝑓)‘1) = 𝐵)))
99	79, 89, 94, 98	mpbir3and 1245	. . . . . . . . . . . . 13 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝐹 ∘ 𝑓) ∈ ∪ (Base‘𝑄))
100	99	adantr 481	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹 ∘ 𝑓) ∈ ∪ (Base‘𝑄))
101		cnco 21070	. . . . . . . . . . . . . 14 ⊢ ((ℎ ∈ (II Cn 𝐽) ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹 ∘ ℎ) ∈ (II Cn 𝐾))
102	49, 54, 101	syl2anc 693	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹 ∘ ℎ) ∈ (II Cn 𝐾))
103	80	a1i 11	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → II ∈ (TopOn‘(0[,]1)))
104		cnf2 21053	. . . . . . . . . . . . . . . 16 ⊢ ((II ∈ (TopOn‘(0[,]1)) ∧ 𝐽 ∈ (TopOn‘𝑋) ∧ ℎ ∈ (II Cn 𝐽)) → ℎ:(0[,]1)⟶𝑋)
105	103, 65, 49, 104	syl3anc 1326	. . . . . . . . . . . . . . 15 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ℎ:(0[,]1)⟶𝑋)
106		fvco3 6275	. . . . . . . . . . . . . . 15 ⊢ ((ℎ:(0[,]1)⟶𝑋 ∧ 0 ∈ (0[,]1)) → ((𝐹 ∘ ℎ)‘0) = (𝐹‘(ℎ‘0)))
107	105, 84, 106	sylancl 694	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝐹 ∘ ℎ)‘0) = (𝐹‘(ℎ‘0)))
108	52	fveq2d 6195	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹‘(ℎ‘0)) = (𝐹‘𝐴))
109	12	ad2antrr 762	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹‘𝐴) = 𝐵)
110	107, 108, 109	3eqtrd 2660	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝐹 ∘ ℎ)‘0) = 𝐵)
111		fvco3 6275	. . . . . . . . . . . . . . 15 ⊢ ((ℎ:(0[,]1)⟶𝑋 ∧ 1 ∈ (0[,]1)) → ((𝐹 ∘ ℎ)‘1) = (𝐹‘(ℎ‘1)))
112	105, 90, 111	sylancl 694	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝐹 ∘ ℎ)‘1) = (𝐹‘(ℎ‘1)))
113	63	fveq2d 6195	. . . . . . . . . . . . . 14 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹‘(ℎ‘1)) = (𝐹‘𝐴))
114	112, 113, 109	3eqtrd 2660	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝐹 ∘ ℎ)‘1) = 𝐵)
115		eqidd 2623	. . . . . . . . . . . . . . 15 ⊢ (𝜑 → (Base‘𝑄) = (Base‘𝑄))
116	17, 11, 16, 115	pi1eluni 22842	. . . . . . . . . . . . . 14 ⊢ (𝜑 → ((𝐹 ∘ ℎ) ∈ ∪ (Base‘𝑄) ↔ ((𝐹 ∘ ℎ) ∈ (II Cn 𝐾) ∧ ((𝐹 ∘ ℎ)‘0) = 𝐵 ∧ ((𝐹 ∘ ℎ)‘1) = 𝐵)))
117	116	ad2antrr 762	. . . . . . . . . . . . 13 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝐹 ∘ ℎ) ∈ ∪ (Base‘𝑄) ↔ ((𝐹 ∘ ℎ) ∈ (II Cn 𝐾) ∧ ((𝐹 ∘ ℎ)‘0) = 𝐵 ∧ ((𝐹 ∘ ℎ)‘1) = 𝐵)))
118	102, 110, 114, 117	mpbir3and 1245	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐹 ∘ ℎ) ∈ ∪ (Base‘𝑄))
119	17, 73, 74, 75, 76, 100, 118	pi1addval 22848	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ([(𝐹 ∘ 𝑓)]( ≃ph‘𝐾)(+g‘𝑄)[(𝐹 ∘ ℎ)]( ≃ph‘𝐾)) = [((𝐹 ∘ 𝑓)(*𝑝‘𝐾)(𝐹 ∘ ℎ))]( ≃ph‘𝐾))
120	56, 72, 119	3eqtr4d 2666	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘[(𝑓(*𝑝‘𝐽)ℎ)]( ≃ph‘𝐽)) = ([(𝐹 ∘ 𝑓)]( ≃ph‘𝐾)(+g‘𝑄)[(𝐹 ∘ ℎ)]( ≃ph‘𝐾)))
121		eqid 2622	. . . . . . . . . . . 12 ⊢ (+g‘𝑃) = (+g‘𝑃)
122		simplr 792	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → 𝑓 ∈ ∪ 𝑉)
123		simpr 477	. . . . . . . . . . . 12 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ℎ ∈ ∪ 𝑉)
124	3, 21, 65, 66, 121, 122, 123	pi1addval 22848	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ([𝑓]( ≃ph‘𝐽)(+g‘𝑃)[ℎ]( ≃ph‘𝐽)) = [(𝑓(*𝑝‘𝐽)ℎ)]( ≃ph‘𝐽))
125	124	fveq2d 6195	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)[ℎ]( ≃ph‘𝐽))) = (𝐺‘[(𝑓(*𝑝‘𝐽)ℎ)]( ≃ph‘𝐽)))
126	3, 17, 21, 22, 1, 6, 2, 12	pi1coval 22860	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (𝐺‘[𝑓]( ≃ph‘𝐽)) = [(𝐹 ∘ 𝑓)]( ≃ph‘𝐾))
127	126	adantr 481	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘[𝑓]( ≃ph‘𝐽)) = [(𝐹 ∘ 𝑓)]( ≃ph‘𝐾))
128	3, 17, 21, 22, 1, 6, 2, 12	pi1coval 22860	. . . . . . . . . . . 12 ⊢ ((𝜑 ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘[ℎ]( ≃ph‘𝐽)) = [(𝐹 ∘ ℎ)]( ≃ph‘𝐾))
129	128	adantlr 751	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘[ℎ]( ≃ph‘𝐽)) = [(𝐹 ∘ ℎ)]( ≃ph‘𝐾))
130	127, 129	oveq12d 6668	. . . . . . . . . 10 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘[ℎ]( ≃ph‘𝐽))) = ([(𝐹 ∘ 𝑓)]( ≃ph‘𝐾)(+g‘𝑄)[(𝐹 ∘ ℎ)]( ≃ph‘𝐾)))
131	120, 125, 130	3eqtr4d 2666	. . . . . . . . 9 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ ℎ ∈ ∪ 𝑉) → (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)[ℎ]( ≃ph‘𝐽))) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘[ℎ]( ≃ph‘𝐽))))
132	28, 39, 131	ectocld 7814	. . . . . . . 8 ⊢ (((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) ∧ 𝑧 ∈ (∪ 𝑉 / ( ≃ph‘𝐽))) → (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)))
133	132	ralrimiva 2966	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ∀𝑧 ∈ (∪ 𝑉 / ( ≃ph‘𝐽))(𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)))
134	25	adantr 481	. . . . . . . 8 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → 𝑉 = (∪ 𝑉 / ( ≃ph‘𝐽)))
135	134	raleqdv 3144	. . . . . . 7 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → (∀𝑧 ∈ 𝑉 (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)) ↔ ∀𝑧 ∈ (∪ 𝑉 / ( ≃ph‘𝐽))(𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧))))
136	133, 135	mpbird 247	. . . . . 6 ⊢ ((𝜑 ∧ 𝑓 ∈ ∪ 𝑉) → ∀𝑧 ∈ 𝑉 (𝐺‘([𝑓]( ≃ph‘𝐽)(+g‘𝑃)𝑧)) = ((𝐺‘[𝑓]( ≃ph‘𝐽))(+g‘𝑄)(𝐺‘𝑧)))
137	28, 34, 136	ectocld 7814	. . . . 5 ⊢ ((𝜑 ∧ 𝑦 ∈ (∪ 𝑉 / ( ≃ph‘𝐽))) → ∀𝑧 ∈ 𝑉 (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧)))
138	27, 137	syldan 487	. . . 4 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑉) → ∀𝑧 ∈ 𝑉 (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧)))
139	138	ralrimiva 2966	. . 3 ⊢ (𝜑 → ∀𝑦 ∈ 𝑉 ∀𝑧 ∈ 𝑉 (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧)))
140	23, 139	jca 554	. 2 ⊢ (𝜑 → (𝐺:𝑉⟶(Base‘𝑄) ∧ ∀𝑦 ∈ 𝑉 ∀𝑧 ∈ 𝑉 (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧))))
141	21, 73, 121, 76	isghm 17660	. 2 ⊢ (𝐺 ∈ (𝑃 GrpHom 𝑄) ↔ ((𝑃 ∈ Grp ∧ 𝑄 ∈ Grp) ∧ (𝐺:𝑉⟶(Base‘𝑄) ∧ ∀𝑦 ∈ 𝑉 ∀𝑧 ∈ 𝑉 (𝐺‘(𝑦(+g‘𝑃)𝑧)) = ((𝐺‘𝑦)(+g‘𝑄)(𝐺‘𝑧)))))
142	20, 140, 141	sylanbrc 698	1 ⊢ (𝜑 → 𝐺 ∈ (𝑃 GrpHom 𝑄))

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   ∧ w3a 1037   = wceq 1483   ∈ wcel 1990  ∀wral 2912  ⟨cop 4183  ∪ cuni 4436   ↦ cmpt 4729  ran crn 5115   ∘ ccom 5118  ⟶wf 5884  ‘cfv 5888  (class class class)co 6650  [cec 7740   / cqs 7741  0cc0 9936  1c1 9937  [,]cicc 12178  Basecbs 15857  +_gcplusg 15941  Grpcgrp 17422   GrpHom cghm 17657  Topctop 20698  TopOnctopon 20715   Cn ccn 21028  IIcii 22678   ≃_phcphtpc 22768  *_𝑝cpco 22800   π₁ cpi1 22803

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-inf2 8538  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014  ax-addf 10015  ax-mulf 10016

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-iin 4523  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-of 6897  df-om 7066  df-1st 7168  df-2nd 7169  df-supp 7296  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-2o 7561  df-oadd 7564  df-er 7742  df-ec 7744  df-qs 7748  df-map 7859  df-ixp 7909  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-fsupp 8276  df-fi 8317  df-sup 8348  df-inf 8349  df-oi 8415  df-card 8765  df-cda 8990  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-4 11081  df-5 11082  df-6 11083  df-7 11084  df-8 11085  df-9 11086  df-n0 11293  df-z 11378  df-dec 11494  df-uz 11688  df-q 11789  df-rp 11833  df-xneg 11946  df-xadd 11947  df-xmul 11948  df-ioo 12179  df-icc 12182  df-fz 12327  df-fzo 12466  df-seq 12802  df-exp 12861  df-hash 13118  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-struct 15859  df-ndx 15860  df-slot 15861  df-base 15863  df-sets 15864  df-ress 15865  df-plusg 15954  df-mulr 15955  df-starv 15956  df-sca 15957  df-vsca 15958  df-ip 15959  df-tset 15960  df-ple 15961  df-ds 15964  df-unif 15965  df-hom 15966  df-cco 15967  df-rest 16083  df-topn 16084  df-0g 16102  df-gsum 16103  df-topgen 16104  df-pt 16105  df-prds 16108  df-xrs 16162  df-qtop 16167  df-imas 16168  df-qus 16169  df-xps 16170  df-mre 16246  df-mrc 16247  df-acs 16249  df-mgm 17242  df-sgrp 17284  df-mnd 17295  df-submnd 17336  df-grp 17425  df-mulg 17541  df-ghm 17658  df-cntz 17750  df-cmn 18195  df-psmet 19738  df-xmet 19739  df-met 19740  df-bl 19741  df-mopn 19742  df-cnfld 19747  df-top 20699  df-topon 20716  df-topsp 20737  df-bases 20750  df-cld 20823  df-cn 21031  df-cnp 21032  df-tx 21365  df-hmeo 21558  df-xms 22125  df-ms 22126  df-tms 22127  df-ii 22680  df-htpy 22769  df-phtpy 22770  df-phtpc 22791  df-pco 22805  df-om1 22806  df-pi1 22808

This theorem is referenced by: (None)