Theorem conjnmz 14141

Description: A subgroup is unchanged under conjugation by an element of its normalizer. (Contributed by Mario Carneiro, 18-Jan-2015.)

Hypotheses

Ref	Expression
conjghm.x	⊢ 𝑋 = (Base‘𝐺)
conjghm.p	⊢ + = (+g‘𝐺)
conjghm.m	⊢ − = (-g‘𝐺)
conjsubg.f	⊢ 𝐹 = (𝑥 ∈ 𝑆 ↦ ((𝐴 + 𝑥) − 𝐴))
conjnmz.1	⊢ 𝑁 = {𝑦 ∈ 𝑋 ∣ ∀𝑧 ∈ 𝑋 ((𝑦 + 𝑧) ∈ 𝑆 ↔ (𝑧 + 𝑦) ∈ 𝑆)}

Assertion

Ref	Expression
conjnmz	⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → 𝑆 = ran 𝐹)

Distinct variable groups:   𝑥,𝑦, −   𝑥,𝑧, + ,𝑦   𝑥,𝐴,𝑦,𝑧   𝑦,𝐹,𝑧   𝑥,𝑁   𝑥,𝐺,𝑦,𝑧   𝑥,𝑆,𝑦,𝑧   𝑥,𝑋,𝑦,𝑧

Allowed substitution hints:   𝐹(𝑥)   − (𝑧)   𝑁(𝑦, 𝑧)

Proof of Theorem conjnmz

Dummy variable 𝑤 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		conjsubg.f	. . . . . . 7 ⊢ 𝐹 = (𝑥 ∈ 𝑆 ↦ ((𝐴 + 𝑥) − 𝐴))
2		oveq2 6096	. . . . . . . 8 ⊢ (𝑥 = (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)) → (𝐴 + 𝑥) = (𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))))
3	2	oveq1d 6103	. . . . . . 7 ⊢ (𝑥 = (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)) → ((𝐴 + 𝑥) − 𝐴) = ((𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) − 𝐴))
4		subgrcl 14041	. . . . . . . . . 10 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝐺 ∈ Grp)
5	4	ad2antrr 492	. . . . . . . . 9 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝐺 ∈ Grp)
6		conjghm.x	. . . . . . . . . 10 ⊢ 𝑋 = (Base‘𝐺)
7		eqid 2238	. . . . . . . . . 10 ⊢ (invg‘𝐺) = (invg‘𝐺)
8		conjnmz.1	. . . . . . . . . . . 12 ⊢ 𝑁 = {𝑦 ∈ 𝑋 ∣ ∀𝑧 ∈ 𝑋 ((𝑦 + 𝑧) ∈ 𝑆 ↔ (𝑧 + 𝑦) ∈ 𝑆)}
9	8	ssrab3 3334	. . . . . . . . . . 11 ⊢ 𝑁 ⊆ 𝑋
10		simplr 533	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝐴 ∈ 𝑁)
11	9, 10	sselid 3246	. . . . . . . . . 10 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝐴 ∈ 𝑋)
12	6, 7, 5, 11	grpinvcld 13913	. . . . . . . . 9 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((invg‘𝐺)‘𝐴) ∈ 𝑋)
13	6	subgss 14036	. . . . . . . . . . 11 ⊢ (𝑆 ∈ (SubGrp‘𝐺) → 𝑆 ⊆ 𝑋)
14	13	adantr 276	. . . . . . . . . 10 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → 𝑆 ⊆ 𝑋)
15	14	sselda 3248	. . . . . . . . 9 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝑤 ∈ 𝑋)
16		conjghm.p	. . . . . . . . . 10 ⊢ + = (+g‘𝐺)
17	6, 16	grpass 13873	. . . . . . . . 9 ⊢ ((𝐺 ∈ Grp ∧ (((invg‘𝐺)‘𝐴) ∈ 𝑋 ∧ 𝑤 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋)) → ((((invg‘𝐺)‘𝐴) + 𝑤) + 𝐴) = (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)))
18	5, 12, 15, 11, 17	syl13anc 1280	. . . . . . . 8 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((((invg‘𝐺)‘𝐴) + 𝑤) + 𝐴) = (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)))
19		eqid 2238	. . . . . . . . . . . . 13 ⊢ (0g‘𝐺) = (0g‘𝐺)
20	6, 16, 19, 7, 5, 11	grprinvd 13920	. . . . . . . . . . . 12 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐴 + ((invg‘𝐺)‘𝐴)) = (0g‘𝐺))
21	20	oveq1d 6103	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + ((invg‘𝐺)‘𝐴)) + 𝑤) = ((0g‘𝐺) + 𝑤))
22	6, 16	grpass 13873	. . . . . . . . . . . 12 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 ∈ 𝑋 ∧ ((invg‘𝐺)‘𝐴) ∈ 𝑋 ∧ 𝑤 ∈ 𝑋)) → ((𝐴 + ((invg‘𝐺)‘𝐴)) + 𝑤) = (𝐴 + (((invg‘𝐺)‘𝐴) + 𝑤)))
23	5, 11, 12, 15, 22	syl13anc 1280	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + ((invg‘𝐺)‘𝐴)) + 𝑤) = (𝐴 + (((invg‘𝐺)‘𝐴) + 𝑤)))
24	6, 16, 19, 5, 15	grplidd 13897	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((0g‘𝐺) + 𝑤) = 𝑤)
25	21, 23, 24	3eqtr3d 2279	. . . . . . . . . 10 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐴 + (((invg‘𝐺)‘𝐴) + 𝑤)) = 𝑤)
26		simpr 110	. . . . . . . . . 10 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝑤 ∈ 𝑆)
27	25, 26	eqeltrd 2315	. . . . . . . . 9 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐴 + (((invg‘𝐺)‘𝐴) + 𝑤)) ∈ 𝑆)
28	6, 16, 5, 12, 15	grpcld 13878	. . . . . . . . . 10 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (((invg‘𝐺)‘𝐴) + 𝑤) ∈ 𝑋)
29	8	nmzbi 14071	. . . . . . . . . 10 ⊢ ((𝐴 ∈ 𝑁 ∧ (((invg‘𝐺)‘𝐴) + 𝑤) ∈ 𝑋) → ((𝐴 + (((invg‘𝐺)‘𝐴) + 𝑤)) ∈ 𝑆 ↔ ((((invg‘𝐺)‘𝐴) + 𝑤) + 𝐴) ∈ 𝑆))
30	10, 28, 29	syl2anc 415	. . . . . . . . 9 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + (((invg‘𝐺)‘𝐴) + 𝑤)) ∈ 𝑆 ↔ ((((invg‘𝐺)‘𝐴) + 𝑤) + 𝐴) ∈ 𝑆))
31	27, 30	mpbid 147	. . . . . . . 8 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((((invg‘𝐺)‘𝐴) + 𝑤) + 𝐴) ∈ 𝑆)
32	18, 31	eqeltrrd 2316	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)) ∈ 𝑆)
33	6, 16, 5, 15, 11	grpcld 13878	. . . . . . . . . 10 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝑤 + 𝐴) ∈ 𝑋)
34	6, 16, 5, 12, 33	grpcld 13878	. . . . . . . . 9 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)) ∈ 𝑋)
35	6, 16, 5, 11, 34	grpcld 13878	. . . . . . . 8 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) ∈ 𝑋)
36		conjghm.m	. . . . . . . . 9 ⊢ − = (-g‘𝐺)
37	6, 36	grpsubcl 13944	. . . . . . . 8 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → ((𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) − 𝐴) ∈ 𝑋)
38	5, 35, 11, 37	syl3anc 1278	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) − 𝐴) ∈ 𝑋)
39	1, 3, 32, 38	fvmptd3 5802	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐹‘(((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) = ((𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) − 𝐴))
40	20	oveq1d 6103	. . . . . . . 8 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + ((invg‘𝐺)‘𝐴)) + (𝑤 + 𝐴)) = ((0g‘𝐺) + (𝑤 + 𝐴)))
41	6, 16	grpass 13873	. . . . . . . . 9 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 ∈ 𝑋 ∧ ((invg‘𝐺)‘𝐴) ∈ 𝑋 ∧ (𝑤 + 𝐴) ∈ 𝑋)) → ((𝐴 + ((invg‘𝐺)‘𝐴)) + (𝑤 + 𝐴)) = (𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))))
42	5, 11, 12, 33, 41	syl13anc 1280	. . . . . . . 8 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + ((invg‘𝐺)‘𝐴)) + (𝑤 + 𝐴)) = (𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))))
43	6, 16, 19, 5, 33	grplidd 13897	. . . . . . . 8 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((0g‘𝐺) + (𝑤 + 𝐴)) = (𝑤 + 𝐴))
44	40, 42, 43	3eqtr3d 2279	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) = (𝑤 + 𝐴))
45	44	oveq1d 6103	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝐴 + (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) − 𝐴) = ((𝑤 + 𝐴) − 𝐴))
46	6, 16, 36	grppncan 13955	. . . . . . 7 ⊢ ((𝐺 ∈ Grp ∧ 𝑤 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → ((𝑤 + 𝐴) − 𝐴) = 𝑤)
47	5, 15, 11, 46	syl3anc 1278	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ((𝑤 + 𝐴) − 𝐴) = 𝑤)
48	39, 45, 47	3eqtrd 2275	. . . . 5 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐹‘(((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) = 𝑤)
49	5	adantr 276	. . . . . . . . 9 ⊢ ((((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) ∧ 𝑥 ∈ 𝑆) → 𝐺 ∈ Grp)
50	11	adantr 276	. . . . . . . . . 10 ⊢ ((((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) ∧ 𝑥 ∈ 𝑆) → 𝐴 ∈ 𝑋)
51	14	adantr 276	. . . . . . . . . . 11 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝑆 ⊆ 𝑋)
52	51	sselda 3248	. . . . . . . . . 10 ⊢ ((((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑋)
53	6, 16, 49, 50, 52	grpcld 13878	. . . . . . . . 9 ⊢ ((((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) ∧ 𝑥 ∈ 𝑆) → (𝐴 + 𝑥) ∈ 𝑋)
54	6, 36	grpsubcl 13944	. . . . . . . . 9 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 + 𝑥) ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → ((𝐴 + 𝑥) − 𝐴) ∈ 𝑋)
55	49, 53, 50, 54	syl3anc 1278	. . . . . . . 8 ⊢ ((((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) ∧ 𝑥 ∈ 𝑆) → ((𝐴 + 𝑥) − 𝐴) ∈ 𝑋)
56	55	ralrimiva 2623	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → ∀𝑥 ∈ 𝑆 ((𝐴 + 𝑥) − 𝐴) ∈ 𝑋)
57	1	fnmpt 5513	. . . . . . 7 ⊢ (∀𝑥 ∈ 𝑆 ((𝐴 + 𝑥) − 𝐴) ∈ 𝑋 → 𝐹 Fn 𝑆)
58	56, 57	syl 14	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝐹 Fn 𝑆)
59		fnfvelrn 5843	. . . . . 6 ⊢ ((𝐹 Fn 𝑆 ∧ (((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴)) ∈ 𝑆) → (𝐹‘(((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) ∈ ran 𝐹)
60	58, 32, 59	syl2anc 415	. . . . 5 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → (𝐹‘(((invg‘𝐺)‘𝐴) + (𝑤 + 𝐴))) ∈ ran 𝐹)
61	48, 60	eqeltrrd 2316	. . . 4 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑤 ∈ 𝑆) → 𝑤 ∈ ran 𝐹)
62	61	ex 115	. . 3 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → (𝑤 ∈ 𝑆 → 𝑤 ∈ ran 𝐹))
63	62	ssrdv 3254	. 2 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → 𝑆 ⊆ ran 𝐹)
64	4	ad2antrr 492	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → 𝐺 ∈ Grp)
65		simplr 533	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → 𝐴 ∈ 𝑁)
66	9, 65	sselid 3246	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → 𝐴 ∈ 𝑋)
67	14	sselda 3248	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑋)
68	6, 16, 36	grpaddsubass 13954	. . . . . 6 ⊢ ((𝐺 ∈ Grp ∧ (𝐴 ∈ 𝑋 ∧ 𝑥 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋)) → ((𝐴 + 𝑥) − 𝐴) = (𝐴 + (𝑥 − 𝐴)))
69	64, 66, 67, 66, 68	syl13anc 1280	. . . . 5 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → ((𝐴 + 𝑥) − 𝐴) = (𝐴 + (𝑥 − 𝐴)))
70	6, 16, 36	grpnpcan 13956	. . . . . . . 8 ⊢ ((𝐺 ∈ Grp ∧ 𝑥 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → ((𝑥 − 𝐴) + 𝐴) = 𝑥)
71	64, 67, 66, 70	syl3anc 1278	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → ((𝑥 − 𝐴) + 𝐴) = 𝑥)
72		simpr 110	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → 𝑥 ∈ 𝑆)
73	71, 72	eqeltrd 2315	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → ((𝑥 − 𝐴) + 𝐴) ∈ 𝑆)
74	6, 36	grpsubcl 13944	. . . . . . . 8 ⊢ ((𝐺 ∈ Grp ∧ 𝑥 ∈ 𝑋 ∧ 𝐴 ∈ 𝑋) → (𝑥 − 𝐴) ∈ 𝑋)
75	64, 67, 66, 74	syl3anc 1278	. . . . . . 7 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → (𝑥 − 𝐴) ∈ 𝑋)
76	8	nmzbi 14071	. . . . . . 7 ⊢ ((𝐴 ∈ 𝑁 ∧ (𝑥 − 𝐴) ∈ 𝑋) → ((𝐴 + (𝑥 − 𝐴)) ∈ 𝑆 ↔ ((𝑥 − 𝐴) + 𝐴) ∈ 𝑆))
77	65, 75, 76	syl2anc 415	. . . . . 6 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → ((𝐴 + (𝑥 − 𝐴)) ∈ 𝑆 ↔ ((𝑥 − 𝐴) + 𝐴) ∈ 𝑆))
78	73, 77	mpbird 167	. . . . 5 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → (𝐴 + (𝑥 − 𝐴)) ∈ 𝑆)
79	69, 78	eqeltrd 2315	. . . 4 ⊢ (((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) ∧ 𝑥 ∈ 𝑆) → ((𝐴 + 𝑥) − 𝐴) ∈ 𝑆)
80	79, 1	fmptd 5865	. . 3 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → 𝐹:𝑆⟶𝑆)
81	80	frnd 5546	. 2 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → ran 𝐹 ⊆ 𝑆)
82	63, 81	eqssd 3265	1 ⊢ ((𝑆 ∈ (SubGrp‘𝐺) ∧ 𝐴 ∈ 𝑁) → 𝑆 = ran 𝐹)

This proof depends on syntax axioms:   → wi 4   ∧ wa 104   ↔ wb 105   = wceq 1402   ∈ wcel 2209  ∀wral 2528  {crab 2532   ⊆ wss 3220   ↦ cmpt 4193  ran crn 4777   Fn wfn 5375  ‘cfv 5380  (class class class)co 6088  Basecbs 13410  +_gcplusg 13490  0_gc0g 13669  Grpcgrp 13864  inv_gcminusg 13865  -_gcsg 13866  SubGrpcsubg 14029

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4248  ax-sep 4251  ax-pow 4313  ax-pr 4348  ax-un 4580  ax-setind 4686  ax-cnex 8276  ax-resscn 8277  ax-1re 8279  ax-addrcl 8282

This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4132  df-opab 4194  df-mpt 4195  df-id 4440  df-xp 4782  df-rel 4783  df-cnv 4784  df-co 4785  df-dm 4786  df-rn 4787  df-res 4788  df-ima 4789  df-iota 5340  df-fun 5382  df-fn 5383  df-f 5384  df-f1 5385  df-fo 5386  df-f1o 5387  df-fv 5388  df-riota 6041  df-ov 6091  df-oprab 6092  df-mpo 6093  df-1st 6378  df-2nd 6379  df-inn 9314  df-2 9372  df-ndx 13413  df-slot 13414  df-base 13416  df-plusg 13503  df-0g 13671  df-mgm 13735  df-sgrp 13776  df-mnd 13789  df-grp 13867  df-minusg 13868  df-sbg 13869  df-subg 14032

This theorem is used by:  conjnmzb  14142  conjnsg  14143