Theorem conjga 33612

Description: Group conjugation induces a group action. (Contributed by Thierry Arnoux, 18-Nov-2025.)

Hypotheses

Ref	Expression
cntrval2.1	⊢ 𝐵 = (Base‘𝑀)
cntrval2.2	⊢ + = (+g‘𝑀)
cntrval2.3	⊢ − = (-g‘𝑀)
cntrval2.4	⊢ ⊕ = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ((𝑥 + 𝑦) − 𝑥))

Assertion

Ref	Expression
conjga	⊢ (𝑀 ∈ Grp → ⊕ ∈ (𝑀 GrpAct 𝐵))

Distinct variable groups:   𝑥, ⊕ ,𝑦   𝑥, + ,𝑦   𝑥, − ,𝑦   𝑥,𝐵,𝑦   𝑥,𝑀,𝑦

Proof of Theorem conjga

Dummy variables 𝑢 𝑣 𝑧 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		id 23	. 2 ⊢ (𝑀 ∈ Grp → 𝑀 ∈ Grp)
2		cntrval2.1	. . . 4 ⊢ 𝐵 = (Base‘𝑀)
3	2	fvexi 6896	. . 3 ⊢ 𝐵 ∈ V
4	3	a1i 11	. 2 ⊢ (𝑀 ∈ Grp → 𝐵 ∈ V)
5		cntrval2.3	. . . 4 ⊢ − = (-g‘𝑀)
6	1	adantr 486	. . . 4 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ (𝐵 × 𝐵)) → 𝑀 ∈ Grp)
7		cntrval2.2	. . . . 5 ⊢ + = (+g‘𝑀)
8		xp1st 8021	. . . . . 6 ⊢ (𝑧 ∈ (𝐵 × 𝐵) → (1st ‘𝑧) ∈ 𝐵)
9	8	adantl 487	. . . . 5 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ (𝐵 × 𝐵)) → (1st ‘𝑧) ∈ 𝐵)
10		xp2nd 8022	. . . . . 6 ⊢ (𝑧 ∈ (𝐵 × 𝐵) → (2nd ‘𝑧) ∈ 𝐵)
11	10	adantl 487	. . . . 5 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ (𝐵 × 𝐵)) → (2nd ‘𝑧) ∈ 𝐵)
12	2, 7, 6, 9, 11	grpcld 19075	. . . 4 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ (𝐵 × 𝐵)) → ((1st ‘𝑧) + (2nd ‘𝑧)) ∈ 𝐵)
13	2, 5, 6, 12, 9	grpsubcld 33483	. . 3 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ (𝐵 × 𝐵)) → (((1st ‘𝑧) + (2nd ‘𝑧)) − (1st ‘𝑧)) ∈ 𝐵)
14		cntrval2.4	. . . 4 ⊢ ⊕ = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ((𝑥 + 𝑦) − 𝑥))
15		vex 3457	. . . . . . . 8 ⊢ 𝑥 ∈ V
16		vex 3457	. . . . . . . 8 ⊢ 𝑦 ∈ V
17	15, 16	op1std 7999	. . . . . . 7 ⊢ (𝑧 = ⟨𝑥, 𝑦⟩ → (1st ‘𝑧) = 𝑥)
18	15, 16	op2ndd 8000	. . . . . . 7 ⊢ (𝑧 = ⟨𝑥, 𝑦⟩ → (2nd ‘𝑧) = 𝑦)
19	17, 18	oveq12d 7434	. . . . . 6 ⊢ (𝑧 = ⟨𝑥, 𝑦⟩ → ((1st ‘𝑧) + (2nd ‘𝑧)) = (𝑥 + 𝑦))
20	19, 17	oveq12d 7434	. . . . 5 ⊢ (𝑧 = ⟨𝑥, 𝑦⟩ → (((1st ‘𝑧) + (2nd ‘𝑧)) − (1st ‘𝑧)) = ((𝑥 + 𝑦) − 𝑥))
21	20	mpompt 7530	. . . 4 ⊢ (𝑧 ∈ (𝐵 × 𝐵) ↦ (((1st ‘𝑧) + (2nd ‘𝑧)) − (1st ‘𝑧))) = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ((𝑥 + 𝑦) − 𝑥))
22	14, 21	eqtr4i 2788	. . 3 ⊢ ⊕ = (𝑧 ∈ (𝐵 × 𝐵) ↦ (((1st ‘𝑧) + (2nd ‘𝑧)) − (1st ‘𝑧)))
23	13, 22	fmptd 7110	. 2 ⊢ (𝑀 ∈ Grp → ⊕ :(𝐵 × 𝐵)⟶𝐵)
24	14	a1i 11	. . . . 5 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) → ⊕ = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ((𝑥 + 𝑦) − 𝑥)))
25		simplr 781	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → 𝑥 = (0g‘𝑀))
26		simpr 490	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → 𝑦 = 𝑧)
27	25, 26	oveq12d 7434	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → (𝑥 + 𝑦) = ((0g‘𝑀) + 𝑧))
28	27, 25	oveq12d 7434	. . . . . . 7 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → ((𝑥 + 𝑦) − 𝑥) = (((0g‘𝑀) + 𝑧) − (0g‘𝑀)))
29	1	ad3antrrr 743	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → 𝑀 ∈ Grp)
30		eqid 2762	. . . . . . . . . . 11 ⊢ (0g‘𝑀) = (0g‘𝑀)
31	2, 30	grpidcl 19093	. . . . . . . . . 10 ⊢ (𝑀 ∈ Grp → (0g‘𝑀) ∈ 𝐵)
32	31	ad3antrrr 743	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → (0g‘𝑀) ∈ 𝐵)
33		simpllr 788	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → 𝑧 ∈ 𝐵)
34	2, 7, 29, 32, 33	grpcld 19075	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → ((0g‘𝑀) + 𝑧) ∈ 𝐵)
35	2, 30, 5	grpsubid1 19152	. . . . . . . 8 ⊢ ((𝑀 ∈ Grp ∧ ((0g‘𝑀) + 𝑧) ∈ 𝐵) → (((0g‘𝑀) + 𝑧) − (0g‘𝑀)) = ((0g‘𝑀) + 𝑧))
36	29, 34, 35	syl2anc 596	. . . . . . 7 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → (((0g‘𝑀) + 𝑧) − (0g‘𝑀)) = ((0g‘𝑀) + 𝑧))
37	2, 7, 30, 29, 33	grplidd 19097	. . . . . . 7 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → ((0g‘𝑀) + 𝑧) = 𝑧)
38	28, 36, 37	3eqtrd 2801	. . . . . 6 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑥 = (0g‘𝑀)) ∧ 𝑦 = 𝑧) → ((𝑥 + 𝑦) − 𝑥) = 𝑧)
39	38	anasss 472	. . . . 5 ⊢ (((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ (𝑥 = (0g‘𝑀) ∧ 𝑦 = 𝑧)) → ((𝑥 + 𝑦) − 𝑥) = 𝑧)
40	31	adantr 486	. . . . 5 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) → (0g‘𝑀) ∈ 𝐵)
41		simpr 490	. . . . 5 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) → 𝑧 ∈ 𝐵)
42	24, 39, 40, 41, 41	ovmpod 7568	. . . 4 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) → ((0g‘𝑀) ⊕ 𝑧) = 𝑧)
43	1	ad3antrrr 743	. . . . . . . . . 10 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → 𝑀 ∈ Grp)
44		simplr 781	. . . . . . . . . 10 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → 𝑢 ∈ 𝐵)
45		simpr 490	. . . . . . . . . 10 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → 𝑣 ∈ 𝐵)
46		simpllr 788	. . . . . . . . . 10 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → 𝑧 ∈ 𝐵)
47	2, 7, 43, 44, 45, 46	grpassd 19073	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ((𝑢 + 𝑣) + 𝑧) = (𝑢 + (𝑣 + 𝑧)))
48	47	oveq1d 7431	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (((𝑢 + 𝑣) + 𝑧) − (𝑢 + 𝑣)) = ((𝑢 + (𝑣 + 𝑧)) − (𝑢 + 𝑣)))
49	2, 7, 43, 45, 46	grpcld 19075	. . . . . . . . . 10 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (𝑣 + 𝑧) ∈ 𝐵)
50	2, 7, 43, 44, 49	grpcld 19075	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (𝑢 + (𝑣 + 𝑧)) ∈ 𝐵)
51	2, 7, 5	grpsubsub4 19160	. . . . . . . . 9 ⊢ ((𝑀 ∈ Grp ∧ ((𝑢 + (𝑣 + 𝑧)) ∈ 𝐵 ∧ 𝑣 ∈ 𝐵 ∧ 𝑢 ∈ 𝐵)) → (((𝑢 + (𝑣 + 𝑧)) − 𝑣) − 𝑢) = ((𝑢 + (𝑣 + 𝑧)) − (𝑢 + 𝑣)))
52	43, 50, 45, 44, 51	syl13anc 1399	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (((𝑢 + (𝑣 + 𝑧)) − 𝑣) − 𝑢) = ((𝑢 + (𝑣 + 𝑧)) − (𝑢 + 𝑣)))
53	2, 7, 5	grpaddsubass 19157	. . . . . . . . . 10 ⊢ ((𝑀 ∈ Grp ∧ (𝑢 ∈ 𝐵 ∧ (𝑣 + 𝑧) ∈ 𝐵 ∧ 𝑣 ∈ 𝐵)) → ((𝑢 + (𝑣 + 𝑧)) − 𝑣) = (𝑢 + ((𝑣 + 𝑧) − 𝑣)))
54	43, 44, 49, 45, 53	syl13anc 1399	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ((𝑢 + (𝑣 + 𝑧)) − 𝑣) = (𝑢 + ((𝑣 + 𝑧) − 𝑣)))
55	54	oveq1d 7431	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (((𝑢 + (𝑣 + 𝑧)) − 𝑣) − 𝑢) = ((𝑢 + ((𝑣 + 𝑧) − 𝑣)) − 𝑢))
56	48, 52, 55	3eqtr2d 2803	. . . . . . 7 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (((𝑢 + 𝑣) + 𝑧) − (𝑢 + 𝑣)) = ((𝑢 + ((𝑣 + 𝑧) − 𝑣)) − 𝑢))
57	14	a1i 11	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ⊕ = (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ ((𝑥 + 𝑦) − 𝑥)))
58		simprl 783	. . . . . . . . . 10 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = (𝑢 + 𝑣) ∧ 𝑦 = 𝑧)) → 𝑥 = (𝑢 + 𝑣))
59		simprr 785	. . . . . . . . . 10 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = (𝑢 + 𝑣) ∧ 𝑦 = 𝑧)) → 𝑦 = 𝑧)
60	58, 59	oveq12d 7434	. . . . . . . . 9 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = (𝑢 + 𝑣) ∧ 𝑦 = 𝑧)) → (𝑥 + 𝑦) = ((𝑢 + 𝑣) + 𝑧))
61	60, 58	oveq12d 7434	. . . . . . . 8 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = (𝑢 + 𝑣) ∧ 𝑦 = 𝑧)) → ((𝑥 + 𝑦) − 𝑥) = (((𝑢 + 𝑣) + 𝑧) − (𝑢 + 𝑣)))
62	2, 7, 43, 44, 45	grpcld 19075	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (𝑢 + 𝑣) ∈ 𝐵)
63		ovexd 7451	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (((𝑢 + 𝑣) + 𝑧) − (𝑢 + 𝑣)) ∈ V)
64	57, 61, 62, 46, 63	ovmpod 7568	. . . . . . 7 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ((𝑢 + 𝑣) ⊕ 𝑧) = (((𝑢 + 𝑣) + 𝑧) − (𝑢 + 𝑣)))
65		simprl 783	. . . . . . . . . 10 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑢 ∧ 𝑦 = (𝑣 ⊕ 𝑧))) → 𝑥 = 𝑢)
66		simprr 785	. . . . . . . . . . 11 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑢 ∧ 𝑦 = (𝑣 ⊕ 𝑧))) → 𝑦 = (𝑣 ⊕ 𝑧))
67		simprl 783	. . . . . . . . . . . . . . 15 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑣 ∧ 𝑦 = 𝑧)) → 𝑥 = 𝑣)
68		simprr 785	. . . . . . . . . . . . . . 15 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑣 ∧ 𝑦 = 𝑧)) → 𝑦 = 𝑧)
69	67, 68	oveq12d 7434	. . . . . . . . . . . . . 14 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑣 ∧ 𝑦 = 𝑧)) → (𝑥 + 𝑦) = (𝑣 + 𝑧))
70	69, 67	oveq12d 7434	. . . . . . . . . . . . 13 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑣 ∧ 𝑦 = 𝑧)) → ((𝑥 + 𝑦) − 𝑥) = ((𝑣 + 𝑧) − 𝑣))
71		ovexd 7451	. . . . . . . . . . . . 13 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ((𝑣 + 𝑧) − 𝑣) ∈ V)
72	57, 70, 45, 46, 71	ovmpod 7568	. . . . . . . . . . . 12 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (𝑣 ⊕ 𝑧) = ((𝑣 + 𝑧) − 𝑣))
73	72	adantr 486	. . . . . . . . . . 11 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑢 ∧ 𝑦 = (𝑣 ⊕ 𝑧))) → (𝑣 ⊕ 𝑧) = ((𝑣 + 𝑧) − 𝑣))
74	66, 73	eqtrd 2797	. . . . . . . . . 10 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑢 ∧ 𝑦 = (𝑣 ⊕ 𝑧))) → 𝑦 = ((𝑣 + 𝑧) − 𝑣))
75	65, 74	oveq12d 7434	. . . . . . . . 9 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑢 ∧ 𝑦 = (𝑣 ⊕ 𝑧))) → (𝑥 + 𝑦) = (𝑢 + ((𝑣 + 𝑧) − 𝑣)))
76	75, 65	oveq12d 7434	. . . . . . . 8 ⊢ (((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) ∧ (𝑥 = 𝑢 ∧ 𝑦 = (𝑣 ⊕ 𝑧))) → ((𝑥 + 𝑦) − 𝑥) = ((𝑢 + ((𝑣 + 𝑧) − 𝑣)) − 𝑢))
77	23	ad3antrrr 743	. . . . . . . . 9 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ⊕ :(𝐵 × 𝐵)⟶𝐵)
78	77, 45, 46	fovcdmd 7589	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (𝑣 ⊕ 𝑧) ∈ 𝐵)
79		ovexd 7451	. . . . . . . 8 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ((𝑢 + ((𝑣 + 𝑧) − 𝑣)) − 𝑢) ∈ V)
80	57, 76, 44, 78, 79	ovmpod 7568	. . . . . . 7 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → (𝑢 ⊕ (𝑣 ⊕ 𝑧)) = ((𝑢 + ((𝑣 + 𝑧) − 𝑣)) − 𝑢))
81	56, 64, 80	3eqtr4d 2807	. . . . . 6 ⊢ ((((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ 𝑢 ∈ 𝐵) ∧ 𝑣 ∈ 𝐵) → ((𝑢 + 𝑣) ⊕ 𝑧) = (𝑢 ⊕ (𝑣 ⊕ 𝑧)))
82	81	anasss 472	. . . . 5 ⊢ (((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) ∧ (𝑢 ∈ 𝐵 ∧ 𝑣 ∈ 𝐵)) → ((𝑢 + 𝑣) ⊕ 𝑧) = (𝑢 ⊕ (𝑣 ⊕ 𝑧)))
83	82	ralrimivva 3207	. . . 4 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) → ∀𝑢 ∈ 𝐵 ∀𝑣 ∈ 𝐵 ((𝑢 + 𝑣) ⊕ 𝑧) = (𝑢 ⊕ (𝑣 ⊕ 𝑧)))
84	42, 83	jca 521	. . 3 ⊢ ((𝑀 ∈ Grp ∧ 𝑧 ∈ 𝐵) → (((0g‘𝑀) ⊕ 𝑧) = 𝑧 ∧ ∀𝑢 ∈ 𝐵 ∀𝑣 ∈ 𝐵 ((𝑢 + 𝑣) ⊕ 𝑧) = (𝑢 ⊕ (𝑣 ⊕ 𝑧))))
85	84	ralrimiva 3156	. 2 ⊢ (𝑀 ∈ Grp → ∀𝑧 ∈ 𝐵 (((0g‘𝑀) ⊕ 𝑧) = 𝑧 ∧ ∀𝑢 ∈ 𝐵 ∀𝑣 ∈ 𝐵 ((𝑢 + 𝑣) ⊕ 𝑧) = (𝑢 ⊕ (𝑣 ⊕ 𝑧))))
86	2, 7, 30	isga 19422	. 2 ⊢ ( ⊕ ∈ (𝑀 GrpAct 𝐵) ↔ ((𝑀 ∈ Grp ∧ 𝐵 ∈ V) ∧ ( ⊕ :(𝐵 × 𝐵)⟶𝐵 ∧ ∀𝑧 ∈ 𝐵 (((0g‘𝑀) ⊕ 𝑧) = 𝑧 ∧ ∀𝑢 ∈ 𝐵 ∀𝑣 ∈ 𝐵 ((𝑢 + 𝑣) ⊕ 𝑧) = (𝑢 ⊕ (𝑣 ⊕ 𝑧))))))
87	1, 4, 23, 85, 86	syl22anbrc 32936	1 ⊢ (𝑀 ∈ Grp → ⊕ ∈ (𝑀 GrpAct 𝐵))

This proof depends on syntax axioms:   → wi 4   ∧ wa 401   = wceq 1570   ∈ wcel 2145  ∀wral 3078  Vcvv 3453  ⟨cop 4593   ↦ cmpt 5190   × cxp 5657  ⟶wf 6533  ‘cfv 6537  (class class class)co 7416   ∈ cmpo 7418  1^st c1st 7987  2^nd c2nd 7988  Basecbs 17305  +_gcplusg 17346  0_gc0g 17528  Grpcgrp 19061  -_gcsg 19063   GrpAct cga 19420

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2734  ax-sep 5255  ax-nul 5267  ax-pow 5334  ax-pr 5402  ax-un 7739

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-rmo 3367  df-reu 3368  df-rab 3415  df-v 3455  df-sbc 3743  df-csb 3851  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-pw 4562  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-iun 4956  df-br 5108  df-opab 5172  df-mpt 5191  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-fv 6545  df-riota 7373  df-ov 7419  df-oprab 7420  df-mpo 7421  df-1st 7989  df-2nd 7990  df-map 8831  df-0g 17530  df-mgm 18734  df-sgrp 18825  df-mnd 18841  df-grp 19064  df-minusg 19065  df-sbg 19066  df-ga 19421

This theorem is used by:  cntrval2  33613