Theorem imasabl 20090

Description: The image structure of an abelian group is an abelian group (imasgrp 19266 analog). (Contributed by AV, 22-Feb-2025.)

Hypotheses

Ref	Expression
imasabl.u	⊢ (𝜑 → 𝑈 = (𝐹 “s 𝑅))
imasabl.v	⊢ (𝜑 → 𝑉 = (Base‘𝑅))
imasabl.p	⊢ (𝜑 → + = (+g‘𝑅))
imasabl.f	⊢ (𝜑 → 𝐹:𝑉–onto→𝐵)
imasabl.e	⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎 + 𝑏)) = (𝐹‘(𝑝 + 𝑞))))
imasabl.r	⊢ (𝜑 → 𝑅 ∈ Abel)
imasabl.z	⊢ 0 = (0g‘𝑅)

Assertion

Ref	Expression
imasabl	⊢ (𝜑 → (𝑈 ∈ Abel ∧ (𝐹‘ 0 ) = (0g‘𝑈)))

Distinct variable groups:   𝐵,𝑎,𝑏,𝑝,𝑞   𝐹,𝑎,𝑏,𝑝,𝑞   𝑅,𝑝,𝑞   𝑈,𝑎,𝑏,𝑝,𝑞   𝑉,𝑎,𝑏,𝑝,𝑞   + ,𝑝,𝑞   0 ,𝑎,𝑏,𝑝,𝑞   𝜑,𝑎,𝑏,𝑝,𝑞

Allowed substitution hints:   + (𝑎, 𝑏)   𝑅(𝑎, 𝑏)

Proof of Theorem imasabl

Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		imasabl.u	. . . 4 ⊢ (𝜑 → 𝑈 = (𝐹 “s 𝑅))
2		imasabl.v	. . . 4 ⊢ (𝜑 → 𝑉 = (Base‘𝑅))
3		imasabl.p	. . . 4 ⊢ (𝜑 → + = (+g‘𝑅))
4		imasabl.f	. . . 4 ⊢ (𝜑 → 𝐹:𝑉–onto→𝐵)
5		imasabl.e	. . . 4 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎 + 𝑏)) = (𝐹‘(𝑝 + 𝑞))))
6		imasabl.r	. . . . 5 ⊢ (𝜑 → 𝑅 ∈ Abel)
7	6	ablgrpd 20000	. . . 4 ⊢ (𝜑 → 𝑅 ∈ Grp)
8		imasabl.z	. . . 4 ⊢ 0 = (0g‘𝑅)
9	1, 2, 3, 4, 5, 7, 8	imasgrp 19266	. . 3 ⊢ (𝜑 → (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈)))
10	1, 2, 4, 6	imasbas 17684	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐵 = (Base‘𝑈))
11	10	eqcomd 2766	. . . . . . . . . 10 ⊢ (𝜑 → (Base‘𝑈) = 𝐵)
12	11	eleq2d 2846	. . . . . . . . 9 ⊢ (𝜑 → (𝑥 ∈ (Base‘𝑈) ↔ 𝑥 ∈ 𝐵))
13	11	eleq2d 2846	. . . . . . . . 9 ⊢ (𝜑 → (𝑦 ∈ (Base‘𝑈) ↔ 𝑦 ∈ 𝐵))
14	12, 13	anbi12d 644	. . . . . . . 8 ⊢ (𝜑 → ((𝑥 ∈ (Base‘𝑈) ∧ 𝑦 ∈ (Base‘𝑈)) ↔ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)))
15	14	adantr 486	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → ((𝑥 ∈ (Base‘𝑈) ∧ 𝑦 ∈ (Base‘𝑈)) ↔ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)))
16		foelcdmi 6946	. . . . . . . . . . . 12 ⊢ ((𝐹:𝑉–onto→𝐵 ∧ 𝑥 ∈ 𝐵) → ∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥)
17	16	ex 418	. . . . . . . . . . 11 ⊢ (𝐹:𝑉–onto→𝐵 → (𝑥 ∈ 𝐵 → ∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥))
18		foelcdmi 6946	. . . . . . . . . . . 12 ⊢ ((𝐹:𝑉–onto→𝐵 ∧ 𝑦 ∈ 𝐵) → ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦)
19	18	ex 418	. . . . . . . . . . 11 ⊢ (𝐹:𝑉–onto→𝐵 → (𝑦 ∈ 𝐵 → ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦))
20	17, 19	anim12d 621	. . . . . . . . . 10 ⊢ (𝐹:𝑉–onto→𝐵 → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥 ∧ ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦)))
21	4, 20	syl 18	. . . . . . . . 9 ⊢ (𝜑 → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥 ∧ ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦)))
22	21	adantr 486	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥 ∧ ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦)))
23	6	ad3antrrr 743	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → 𝑅 ∈ Abel)
24	2	eleq2d 2846	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (𝑎 ∈ 𝑉 ↔ 𝑎 ∈ (Base‘𝑅)))
25	24	biimpd 232	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝑎 ∈ 𝑉 → 𝑎 ∈ (Base‘𝑅)))
26	25	adantr 486	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → (𝑎 ∈ 𝑉 → 𝑎 ∈ (Base‘𝑅)))
27	26	imp 412	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) → 𝑎 ∈ (Base‘𝑅))
28	27	adantr 486	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → 𝑎 ∈ (Base‘𝑅))
29	2	eleq2d 2846	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (𝑏 ∈ 𝑉 ↔ 𝑏 ∈ (Base‘𝑅)))
30	29	biimpd 232	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝑏 ∈ 𝑉 → 𝑏 ∈ (Base‘𝑅)))
31	30	adantr 486	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → (𝑏 ∈ 𝑉 → 𝑏 ∈ (Base‘𝑅)))
32	31	adantr 486	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) → (𝑏 ∈ 𝑉 → 𝑏 ∈ (Base‘𝑅)))
33	32	imp 412	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → 𝑏 ∈ (Base‘𝑅))
34		eqid 2760	. . . . . . . . . . . . . . . . . . 19 ⊢ (Base‘𝑅) = (Base‘𝑅)
35		eqid 2760	. . . . . . . . . . . . . . . . . . 19 ⊢ (+g‘𝑅) = (+g‘𝑅)
36	34, 35	ablcom 20013	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝑅 ∈ Abel ∧ 𝑎 ∈ (Base‘𝑅) ∧ 𝑏 ∈ (Base‘𝑅)) → (𝑎(+g‘𝑅)𝑏) = (𝑏(+g‘𝑅)𝑎))
37	23, 28, 33, 36	syl3anc 1398	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → (𝑎(+g‘𝑅)𝑏) = (𝑏(+g‘𝑅)𝑎))
38	37	fveq2d 6889	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → (𝐹‘(𝑎(+g‘𝑅)𝑏)) = (𝐹‘(𝑏(+g‘𝑅)𝑎)))
39		simplll 787	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → 𝜑)
40		simpr 490	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) → 𝑎 ∈ 𝑉)
41	40	adantr 486	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → 𝑎 ∈ 𝑉)
42		simpr 490	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → 𝑏 ∈ 𝑉)
43	3	eqcomd 2766	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝜑 → (+g‘𝑅) = + )
44	43	oveqd 7437	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (𝑎(+g‘𝑅)𝑏) = (𝑎 + 𝑏))
45	44	fveq2d 6889	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝐹‘(𝑎(+g‘𝑅)𝑏)) = (𝐹‘(𝑎 + 𝑏)))
46	43	oveqd 7437	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝜑 → (𝑝(+g‘𝑅)𝑞) = (𝑝 + 𝑞))
47	46	fveq2d 6889	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝜑 → (𝐹‘(𝑝(+g‘𝑅)𝑞)) = (𝐹‘(𝑝 + 𝑞)))
48	45, 47	eqeq12d 2776	. . . . . . . . . . . . . . . . . . . 20 ⊢ (𝜑 → ((𝐹‘(𝑎(+g‘𝑅)𝑏)) = (𝐹‘(𝑝(+g‘𝑅)𝑞)) ↔ (𝐹‘(𝑎 + 𝑏)) = (𝐹‘(𝑝 + 𝑞))))
49	48	3ad2ant1 1151	. . . . . . . . . . . . . . . . . . 19 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → ((𝐹‘(𝑎(+g‘𝑅)𝑏)) = (𝐹‘(𝑝(+g‘𝑅)𝑞)) ↔ (𝐹‘(𝑎 + 𝑏)) = (𝐹‘(𝑝 + 𝑞))))
50	5, 49	sylibrd 262	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑝 ∈ 𝑉 ∧ 𝑞 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑝) ∧ (𝐹‘𝑏) = (𝐹‘𝑞)) → (𝐹‘(𝑎(+g‘𝑅)𝑏)) = (𝐹‘(𝑝(+g‘𝑅)𝑞))))
51		eqid 2760	. . . . . . . . . . . . . . . . . 18 ⊢ (+g‘𝑈) = (+g‘𝑈)
52	4, 50, 1, 2, 6, 35, 51	imasaddval 17704	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = (𝐹‘(𝑎(+g‘𝑅)𝑏)))
53	39, 41, 42, 52	syl3anc 1398	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = (𝐹‘(𝑎(+g‘𝑅)𝑏)))
54	4, 50, 1, 2, 6, 35, 51	imasaddval 17704	. . . . . . . . . . . . . . . . 17 ⊢ ((𝜑 ∧ 𝑏 ∈ 𝑉 ∧ 𝑎 ∈ 𝑉) → ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)) = (𝐹‘(𝑏(+g‘𝑅)𝑎)))
55	39, 42, 41, 54	syl3anc 1398	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)) = (𝐹‘(𝑏(+g‘𝑅)𝑎)))
56	38, 53, 55	3eqtr4d 2805	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)))
57	56	adantr 486	. . . . . . . . . . . . . 14 ⊢ (((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) ∧ ((𝐹‘𝑏) = 𝑦 ∧ (𝐹‘𝑎) = 𝑥)) → ((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)))
58		oveq12 7429	. . . . . . . . . . . . . . . . 17 ⊢ (((𝐹‘𝑎) = 𝑥 ∧ (𝐹‘𝑏) = 𝑦) → ((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = (𝑥(+g‘𝑈)𝑦))
59	58	ancoms 464	. . . . . . . . . . . . . . . 16 ⊢ (((𝐹‘𝑏) = 𝑦 ∧ (𝐹‘𝑎) = 𝑥) → ((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = (𝑥(+g‘𝑈)𝑦))
60		oveq12 7429	. . . . . . . . . . . . . . . 16 ⊢ (((𝐹‘𝑏) = 𝑦 ∧ (𝐹‘𝑎) = 𝑥) → ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)) = (𝑦(+g‘𝑈)𝑥))
61	59, 60	eqeq12d 2776	. . . . . . . . . . . . . . 15 ⊢ (((𝐹‘𝑏) = 𝑦 ∧ (𝐹‘𝑎) = 𝑥) → (((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)) ↔ (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)))
62	61	adantl 487	. . . . . . . . . . . . . 14 ⊢ (((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) ∧ ((𝐹‘𝑏) = 𝑦 ∧ (𝐹‘𝑎) = 𝑥)) → (((𝐹‘𝑎)(+g‘𝑈)(𝐹‘𝑏)) = ((𝐹‘𝑏)(+g‘𝑈)(𝐹‘𝑎)) ↔ (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)))
63	57, 62	mpbid 235	. . . . . . . . . . . . 13 ⊢ (((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) ∧ ((𝐹‘𝑏) = 𝑦 ∧ (𝐹‘𝑎) = 𝑥)) → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))
64	63	exp32 426	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑏) = 𝑦 → ((𝐹‘𝑎) = 𝑥 → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))))
65	64	rexlimdva 3163	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) → (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦 → ((𝐹‘𝑎) = 𝑥 → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))))
66	65	com23 87	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ 𝑎 ∈ 𝑉) → ((𝐹‘𝑎) = 𝑥 → (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦 → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))))
67	66	rexlimdva 3163	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥 → (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦 → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))))
68	67	impd 416	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → ((∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = 𝑥 ∧ ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = 𝑦) → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)))
69	22, 68	syld 48	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)))
70	15, 69	sylbid 243	. . . . . 6 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → ((𝑥 ∈ (Base‘𝑈) ∧ 𝑦 ∈ (Base‘𝑈)) → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)))
71	70	imp 412	. . . . 5 ⊢ (((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) ∧ (𝑥 ∈ (Base‘𝑈) ∧ 𝑦 ∈ (Base‘𝑈))) → (𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))
72	71	ralrimivva 3205	. . . 4 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → ∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥))
73		simpr 490	. . . 4 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈)))
74	72, 73	jca 521	. . 3 ⊢ ((𝜑 ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))) → (∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥) ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))))
75	9, 74	mpdan 700	. 2 ⊢ (𝜑 → (∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥) ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))))
76		eqid 2760	. . . . 5 ⊢ (Base‘𝑈) = (Base‘𝑈)
77	76, 51	isabl2 20004	. . . 4 ⊢ (𝑈 ∈ Abel ↔ (𝑈 ∈ Grp ∧ ∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)))
78	77	anbi1i 636	. . 3 ⊢ ((𝑈 ∈ Abel ∧ (𝐹‘ 0 ) = (0g‘𝑈)) ↔ ((𝑈 ∈ Grp ∧ ∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)) ∧ (𝐹‘ 0 ) = (0g‘𝑈)))
79		an21 657	. . 3 ⊢ (((𝑈 ∈ Grp ∧ ∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥)) ∧ (𝐹‘ 0 ) = (0g‘𝑈)) ↔ (∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥) ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))))
80	78, 79	bitri 278	. 2 ⊢ ((𝑈 ∈ Abel ∧ (𝐹‘ 0 ) = (0g‘𝑈)) ↔ (∀𝑥 ∈ (Base‘𝑈)∀𝑦 ∈ (Base‘𝑈)(𝑥(+g‘𝑈)𝑦) = (𝑦(+g‘𝑈)𝑥) ∧ (𝑈 ∈ Grp ∧ (𝐹‘ 0 ) = (0g‘𝑈))))
81	75, 80	sylibr 237	1 ⊢ (𝜑 → (𝑈 ∈ Abel ∧ (𝐹‘ 0 ) = (0g‘𝑈)))

This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   ∧ w3a 1103   = wceq 1569   ∈ wcel 2144  ∀wral 3076  ∃wrex 3086  –onto→wfo 6536  ‘cfv 6538  (class class class)co 7420  Basecbs 17387  +_gcplusg 17428  0_gc0g 17610   “_s cimas 17676  Grpcgrp 19144  Abelcabl 19995

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-rep 5231  ax-sep 5248  ax-nul 5259  ax-pow 5326  ax-pr 5390  ax-un 7751  ax-cnex 11256  ax-resscn 11257  ax-1cn 11258  ax-icn 11259  ax-addcl 11260  ax-addrcl 11261  ax-mulcl 11262  ax-mulrcl 11263  ax-mulcom 11264  ax-addass 11265  ax-mulass 11266  ax-distr 11267  ax-i2m1 11268  ax-1ne0 11269  ax-1rid 11270  ax-rnegex 11271  ax-rrecex 11272  ax-cnre 11273  ax-pre-lttri 11274  ax-pre-lttrn 11275  ax-pre-ltadd 11276  ax-pre-mulgt0 11277

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-nel 3062  df-ral 3077  df-rex 3087  df-rmo 3365  df-reu 3366  df-rab 3413  df-v 3452  df-sbc 3739  df-csb 3847  df-ss 3896  df-pss 4014  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4584  df-pr 4586  df-tp 4588  df-op 4590  df-uni 4867  df-iun 4952  df-br 5103  df-opab 5167  df-mpt 5186  df-tr 5212  df-id 5545  df-eprel 5550  df-po 5558  df-so 5559  df-fr 5603  df-we 5605  df-xp 5656  df-rel 5657  df-cnv 5658  df-co 5659  df-dm 5660  df-rn 5661  df-res 5662  df-ima 5663  df-pred 6304  df-ord 6365  df-on 6366  df-lim 6367  df-suc 6368  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545  df-fv 6546  df-riota 7377  df-ov 7423  df-oprab 7424  df-mpo 7425  df-om 7878  df-1st 8001  df-2nd 8002  df-frecs 8299  df-wrecs 8330  df-recs 8379  df-rdg 8418  df-1o 8476  df-er 8717  df-en 8974  df-dom 8975  df-sdom 8976  df-fin 8977  df-sup 9434  df-inf 9435  df-pnf 11345  df-mnf 11346  df-xr 11347  df-ltxr 11348  df-le 11349  df-sub 11543  df-neg 11544  df-nn 12336  df-2 12405  df-3 12406  df-4 12407  df-5 12408  df-6 12409  df-7 12410  df-8 12411  df-9 12412  df-n0 12607  df-z 12694  df-dec 12815  df-uz 12966  df-fz 13640  df-struct 17325  df-slot 17360  df-ndx 17372  df-base 17388  df-plusg 17441  df-mulr 17442  df-sca 17444  df-vsca 17445  df-ip 17446  df-tset 17447  df-ple 17448  df-ds 17450  df-0g 17612  df-imas 17680  df-mgm 18816  df-sgrp 18908  df-mnd 18924  df-grp 19147  df-minusg 19148  df-cmn 19996  df-abl 19997

This theorem is used by:  imasrng  20399