Theorem conjnmzb 13866

Description: Alternative condition for elementhood in the 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 e. S |-> ( ( A .+ x ) .- A ) )
conjnmz.1	|- N = { y e. X | A. z e. X ( ( y .+ z ) e. S <-> ( z .+ y ) e. S ) }

Assertion

Ref	Expression
conjnmzb	|- ( S e. (SubGrp ` G ) -> ( A e. N <-> ( A e. X /\ 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 conjnmzb

Dummy variable w is distinct from all other variables.

Step	Hyp	Ref	Expression
1		conjnmz.1	. . . . 5 |- N = { y e. X | A. z e. X ( ( y .+ z ) e. S <-> ( z .+ y ) e. S ) }
2	1	ssrab3 3313	. . . 4 |- N C_ X
3		simpr 110	. . . 4 |- ( ( S e. (SubGrp ` G ) /\ A e. N ) -> A e. N )
4	2, 3	sselid 3225	. . 3 |- ( ( S e. (SubGrp ` G ) /\ A e. N ) -> A e. X )
5		conjghm.x	. . . 4 |- X = ( Base ` G )
6		conjghm.p	. . . 4 |- .+ = ( +g ` G )
7		conjghm.m	. . . 4 |- .- = ( -g ` G )
8		conjsubg.f	. . . 4 |- F = ( x e. S |-> ( ( A .+ x ) .- A ) )
9	5, 6, 7, 8, 1	conjnmz 13865	. . 3 |- ( ( S e. (SubGrp ` G ) /\ A e. N ) -> S = ran F )
10	4, 9	jca 306	. 2 |- ( ( S e. (SubGrp ` G ) /\ A e. N ) -> ( A e. X /\ S = ran F ) )
11		simprl 531	. . 3 |- ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) -> A e. X )
12		simplrr 538	. . . . . 6 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> S = ran F )
13	12	eleq2d 2301	. . . . 5 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( ( A .+ w ) e. S <-> ( A .+ w ) e. ran F ) )
14		subgrcl 13765	. . . . . . . . . . . . 13 |- ( S e. (SubGrp ` G ) -> G e. Grp )
15	14	ad3antrrr 492	. . . . . . . . . . . 12 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> G e. Grp )
16		simpllr 536	. . . . . . . . . . . 12 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> A e. X )
17	5	subgss 13760	. . . . . . . . . . . . . 14 |- ( S e. (SubGrp ` G ) -> S C_ X )
18	17	ad2antrr 488	. . . . . . . . . . . . 13 |- ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) -> S C_ X )
19	18	sselda 3227	. . . . . . . . . . . 12 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> x e. X )
20	5, 6, 7	grpaddsubass 13672	. . . . . . . . . . . 12 |- ( ( G e. Grp /\ ( A e. X /\ x e. X /\ A e. X ) ) -> ( ( A .+ x ) .- A ) = ( A .+ ( x .- A ) ) )
21	15, 16, 19, 16, 20	syl13anc 1275	. . . . . . . . . . 11 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( ( A .+ x ) .- A ) = ( A .+ ( x .- A ) ) )
22	21	eqeq1d 2240	. . . . . . . . . 10 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( ( ( A .+ x ) .- A ) = ( A .+ w ) <-> ( A .+ ( x .- A ) ) = ( A .+ w ) ) )
23	5, 7	grpsubcl 13662	. . . . . . . . . . . 12 |- ( ( G e. Grp /\ x e. X /\ A e. X ) -> ( x .- A ) e. X )
24	15, 19, 16, 23	syl3anc 1273	. . . . . . . . . . 11 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( x .- A ) e. X )
25		simplr 529	. . . . . . . . . . 11 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> w e. X )
26	5, 6	grplcan 13644	. . . . . . . . . . 11 |- ( ( G e. Grp /\ ( ( x .- A ) e. X /\ w e. X /\ A e. X ) ) -> ( ( A .+ ( x .- A ) ) = ( A .+ w ) <-> ( x .- A ) = w ) )
27	15, 24, 25, 16, 26	syl13anc 1275	. . . . . . . . . 10 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( ( A .+ ( x .- A ) ) = ( A .+ w ) <-> ( x .- A ) = w ) )
28	5, 6, 7	grpsubadd 13670	. . . . . . . . . . 11 |- ( ( G e. Grp /\ ( x e. X /\ A e. X /\ w e. X ) ) -> ( ( x .- A ) = w <-> ( w .+ A ) = x ) )
29	15, 19, 16, 25, 28	syl13anc 1275	. . . . . . . . . 10 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( ( x .- A ) = w <-> ( w .+ A ) = x ) )
30	22, 27, 29	3bitrd 214	. . . . . . . . 9 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( ( ( A .+ x ) .- A ) = ( A .+ w ) <-> ( w .+ A ) = x ) )
31		eqcom 2233	. . . . . . . . 9 |- ( ( A .+ w ) = ( ( A .+ x ) .- A ) <-> ( ( A .+ x ) .- A ) = ( A .+ w ) )
32		eqcom 2233	. . . . . . . . 9 |- ( x = ( w .+ A ) <-> ( w .+ A ) = x )
33	30, 31, 32	3bitr4g 223	. . . . . . . 8 |- ( ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) /\ x e. S ) -> ( ( A .+ w ) = ( ( A .+ x ) .- A ) <-> x = ( w .+ A ) ) )
34	33	rexbidva 2529	. . . . . . 7 |- ( ( ( S e. (SubGrp ` G ) /\ A e. X ) /\ w e. X ) -> ( E. x e. S ( A .+ w ) = ( ( A .+ x ) .- A ) <-> E. x e. S x = ( w .+ A ) ) )
35	34	adantlrr 483	. . . . . 6 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( E. x e. S ( A .+ w ) = ( ( A .+ x ) .- A ) <-> E. x e. S x = ( w .+ A ) ) )
36	14	ad2antrr 488	. . . . . . . 8 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> G e. Grp )
37		simplrl 537	. . . . . . . 8 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> A e. X )
38		simpr 110	. . . . . . . 8 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> w e. X )
39	5, 6, 36, 37, 38	grpcld 13596	. . . . . . 7 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( A .+ w ) e. X )
40	8	elrnmpt 4981	. . . . . . 7 |- ( ( A .+ w ) e. X -> ( ( A .+ w ) e. ran F <-> E. x e. S ( A .+ w ) = ( ( A .+ x ) .- A ) ) )
41	39, 40	syl 14	. . . . . 6 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( ( A .+ w ) e. ran F <-> E. x e. S ( A .+ w ) = ( ( A .+ x ) .- A ) ) )
42		risset 2560	. . . . . . 7 |- ( ( w .+ A ) e. S <-> E. x e. S x = ( w .+ A ) )
43	42	a1i 9	. . . . . 6 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( ( w .+ A ) e. S <-> E. x e. S x = ( w .+ A ) ) )
44	35, 41, 43	3bitr4d 220	. . . . 5 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( ( A .+ w ) e. ran F <-> ( w .+ A ) e. S ) )
45	13, 44	bitrd 188	. . . 4 |- ( ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) /\ w e. X ) -> ( ( A .+ w ) e. S <-> ( w .+ A ) e. S ) )
46	45	ralrimiva 2605	. . 3 |- ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) -> A. w e. X ( ( A .+ w ) e. S <-> ( w .+ A ) e. S ) )
47	1	elnmz 13794	. . 3 |- ( A e. N <-> ( A e. X /\ A. w e. X ( ( A .+ w ) e. S <-> ( w .+ A ) e. S ) ) )
48	11, 46, 47	sylanbrc 417	. 2 |- ( ( S e. (SubGrp ` G ) /\ ( A e. X /\ S = ran F ) ) -> A e. N )
49	10, 48	impbida 600	1 |- ( S e. (SubGrp ` G ) -> ( A e. N <-> ( A e. X /\ S = ran F ) ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1397   e. wcel 2202   A.wral 2510   E.wrex 2511   {crab 2514   C_ wss 3200   |-> cmpt 4150   ran crn 4726   ` cfv 5326  (class class class)co 6017   Basecbs 13081   +g cplusg 13159   Grpcgrp 13582   -gcsg 13584  SubGrpcsubg 13753

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 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-coll 4204  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8122  ax-resscn 8123  ax-1re 8125  ax-addrcl 8128

This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-ral 2515  df-rex 2516  df-reu 2517  df-rmo 2518  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-iun 3972  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-f1 5331  df-fo 5332  df-f1o 5333  df-fv 5334  df-riota 5970  df-ov 6020  df-oprab 6021  df-mpo 6022  df-1st 6302  df-2nd 6303  df-inn 9143  df-2 9201  df-ndx 13084  df-slot 13085  df-base 13087  df-plusg 13172  df-0g 13340  df-mgm 13438  df-sgrp 13484  df-mnd 13499  df-grp 13585  df-minusg 13586  df-sbg 13587  df-subg 13756

This theorem is referenced by: (None)