Theorem ringsubdir 13553

Description: Ring multiplication distributes over subtraction. (subdir 8405 analog.) (Contributed by Jeff Madsen, 19-Jun-2010.) (Revised by Mario Carneiro, 2-Jul-2014.)

Hypotheses

Ref	Expression
ringsubdi.b	|- B = ( Base ` R )
ringsubdi.t	|- .x. = ( .r ` R )
ringsubdi.m	|- .- = ( -g ` R )
ringsubdi.r	|- ( ph -> R e. Ring )
ringsubdi.x	|- ( ph -> X e. B )
ringsubdi.y	|- ( ph -> Y e. B )
ringsubdi.z	|- ( ph -> Z e. B )

Assertion

Ref	Expression
ringsubdir	|- ( ph -> ( ( X .- Y ) .x. Z ) = ( ( X .x. Z ) .- ( Y .x. Z ) ) )

Proof of Theorem ringsubdir

Step	Hyp	Ref	Expression
1		ringsubdi.r	. . . 4 |- ( ph -> R e. Ring )
2		ringsubdi.x	. . . 4 |- ( ph -> X e. B )
3		ringgrp 13497	. . . . . 6 |- ( R e. Ring -> R e. Grp )
4	1, 3	syl 14	. . . . 5 |- ( ph -> R e. Grp )
5		ringsubdi.y	. . . . 5 |- ( ph -> Y e. B )
6		ringsubdi.b	. . . . . 6 |- B = ( Base ` R )
7		eqid 2193	. . . . . 6 |- ( invg ` R ) = ( invg ` R )
8	6, 7	grpinvcl 13120	. . . . 5 |- ( ( R e. Grp /\ Y e. B ) -> ( ( invg ` R ) ` Y ) e. B )
9	4, 5, 8	syl2anc 411	. . . 4 |- ( ph -> ( ( invg ` R ) ` Y ) e. B )
10		ringsubdi.z	. . . 4 |- ( ph -> Z e. B )
11		eqid 2193	. . . . 5 |- ( +g ` R ) = ( +g ` R )
12		ringsubdi.t	. . . . 5 |- .x. = ( .r ` R )
13	6, 11, 12	ringdir 13515	. . . 4 |- ( ( R e. Ring /\ ( X e. B /\ ( ( invg ` R ) ` Y ) e. B /\ Z e. B ) ) -> ( ( X ( +g ` R ) ( ( invg ` R ) ` Y ) ) .x. Z ) = ( ( X .x. Z ) ( +g ` R ) ( ( ( invg ` R ) ` Y ) .x. Z ) ) )
14	1, 2, 9, 10, 13	syl13anc 1251	. . 3 |- ( ph -> ( ( X ( +g ` R ) ( ( invg ` R ) ` Y ) ) .x. Z ) = ( ( X .x. Z ) ( +g ` R ) ( ( ( invg ` R ) ` Y ) .x. Z ) ) )
15	6, 12, 7, 1, 5, 10	ringmneg1 13549	. . . 4 |- ( ph -> ( ( ( invg ` R ) ` Y ) .x. Z ) = ( ( invg ` R ) ` ( Y .x. Z ) ) )
16	15	oveq2d 5934	. . 3 |- ( ph -> ( ( X .x. Z ) ( +g ` R ) ( ( ( invg ` R ) ` Y ) .x. Z ) ) = ( ( X .x. Z ) ( +g ` R ) ( ( invg ` R ) ` ( Y .x. Z ) ) ) )
17	14, 16	eqtrd 2226	. 2 |- ( ph -> ( ( X ( +g ` R ) ( ( invg ` R ) ` Y ) ) .x. Z ) = ( ( X .x. Z ) ( +g ` R ) ( ( invg ` R ) ` ( Y .x. Z ) ) ) )
18		ringsubdi.m	. . . . 5 |- .- = ( -g ` R )
19	6, 11, 7, 18	grpsubval 13118	. . . 4 |- ( ( X e. B /\ Y e. B ) -> ( X .- Y ) = ( X ( +g ` R ) ( ( invg ` R ) ` Y ) ) )
20	2, 5, 19	syl2anc 411	. . 3 |- ( ph -> ( X .- Y ) = ( X ( +g ` R ) ( ( invg ` R ) ` Y ) ) )
21	20	oveq1d 5933	. 2 |- ( ph -> ( ( X .- Y ) .x. Z ) = ( ( X ( +g ` R ) ( ( invg ` R ) ` Y ) ) .x. Z ) )
22	6, 12	ringcl 13509	. . . 4 |- ( ( R e. Ring /\ X e. B /\ Z e. B ) -> ( X .x. Z ) e. B )
23	1, 2, 10, 22	syl3anc 1249	. . 3 |- ( ph -> ( X .x. Z ) e. B )
24	6, 12	ringcl 13509	. . . 4 |- ( ( R e. Ring /\ Y e. B /\ Z e. B ) -> ( Y .x. Z ) e. B )
25	1, 5, 10, 24	syl3anc 1249	. . 3 |- ( ph -> ( Y .x. Z ) e. B )
26	6, 11, 7, 18	grpsubval 13118	. . 3 |- ( ( ( X .x. Z ) e. B /\ ( Y .x. Z ) e. B ) -> ( ( X .x. Z ) .- ( Y .x. Z ) ) = ( ( X .x. Z ) ( +g ` R ) ( ( invg ` R ) ` ( Y .x. Z ) ) ) )
27	23, 25, 26	syl2anc 411	. 2 |- ( ph -> ( ( X .x. Z ) .- ( Y .x. Z ) ) = ( ( X .x. Z ) ( +g ` R ) ( ( invg ` R ) ` ( Y .x. Z ) ) ) )
28	17, 21, 27	3eqtr4d 2236	1 |- ( ph -> ( ( X .- Y ) .x. Z ) = ( ( X .x. Z ) .- ( Y .x. Z ) ) )

Syntax hints:   -> wi 4   = wceq 1364   e. wcel 2164   ` cfv 5254  (class class class)co 5918   Basecbs 12618   +g cplusg 12695   .rcmulr 12696   Grpcgrp 13072   invgcminusg 13073   -gcsg 13074   Ringcrg 13492

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 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2166  ax-14 2167  ax-ext 2175  ax-coll 4144  ax-sep 4147  ax-pow 4203  ax-pr 4238  ax-un 4464  ax-setind 4569  ax-cnex 7963  ax-resscn 7964  ax-1cn 7965  ax-1re 7966  ax-icn 7967  ax-addcl 7968  ax-addrcl 7969  ax-mulcl 7970  ax-addcom 7972  ax-addass 7974  ax-i2m1 7977  ax-0lt1 7978  ax-0id 7980  ax-rnegex 7981  ax-pre-ltirr 7984  ax-pre-ltadd 7988

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1472  df-sb 1774  df-eu 2045  df-mo 2046  df-clab 2180  df-cleq 2186  df-clel 2189  df-nfc 2325  df-ne 2365  df-nel 2460  df-ral 2477  df-rex 2478  df-reu 2479  df-rmo 2480  df-rab 2481  df-v 2762  df-sbc 2986  df-csb 3081  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-nul 3447  df-pw 3603  df-sn 3624  df-pr 3625  df-op 3627  df-uni 3836  df-int 3871  df-iun 3914  df-br 4030  df-opab 4091  df-mpt 4092  df-id 4324  df-xp 4665  df-rel 4666  df-cnv 4667  df-co 4668  df-dm 4669  df-rn 4670  df-res 4671  df-ima 4672  df-iota 5215  df-fun 5256  df-fn 5257  df-f 5258  df-f1 5259  df-fo 5260  df-f1o 5261  df-fv 5262  df-riota 5873  df-ov 5921  df-oprab 5922  df-mpo 5923  df-1st 6193  df-2nd 6194  df-pnf 8056  df-mnf 8057  df-ltxr 8059  df-inn 8983  df-2 9041  df-3 9042  df-ndx 12621  df-slot 12622  df-base 12624  df-sets 12625  df-plusg 12708  df-mulr 12709  df-0g 12869  df-mgm 12939  df-sgrp 12985  df-mnd 12998  df-grp 13075  df-minusg 13076  df-sbg 13077  df-mgp 13417  df-ur 13456  df-ring 13494

This theorem is referenced by: (None)