Theorem mulgass3 13717

Description: An associative property between group multiple and ring multiplication. (Contributed by Mario Carneiro, 14-Jun-2015.)

Hypotheses

Ref	Expression
mulgass3.b	⊢ 𝐵 = (Base‘𝑅)
mulgass3.m	⊢ · = (.g‘𝑅)
mulgass3.t	⊢ × = (.r‘𝑅)

Assertion

Ref	Expression
mulgass3	⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑋 × (𝑁 · 𝑌)) = (𝑁 · (𝑋 × 𝑌)))

Proof of Theorem mulgass3

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

Step	Hyp	Ref	Expression
1		eqid 2196	. . . . . 6 ⊢ (oppr‘𝑅) = (oppr‘𝑅)
2	1	opprring 13711	. . . . 5 ⊢ (𝑅 ∈ Ring → (oppr‘𝑅) ∈ Ring)
3	2	adantr 276	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (oppr‘𝑅) ∈ Ring)
4		simpr1 1005	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝑁 ∈ ℤ)
5		simpr3 1007	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝑌 ∈ 𝐵)
6		mulgass3.b	. . . . . . 7 ⊢ 𝐵 = (Base‘𝑅)
7	1, 6	opprbasg 13707	. . . . . 6 ⊢ (𝑅 ∈ Ring → 𝐵 = (Base‘(oppr‘𝑅)))
8	7	adantr 276	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝐵 = (Base‘(oppr‘𝑅)))
9	5, 8	eleqtrd 2275	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝑌 ∈ (Base‘(oppr‘𝑅)))
10		simpr2 1006	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝑋 ∈ 𝐵)
11	10, 8	eleqtrd 2275	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝑋 ∈ (Base‘(oppr‘𝑅)))
12		eqid 2196	. . . . 5 ⊢ (Base‘(oppr‘𝑅)) = (Base‘(oppr‘𝑅))
13		eqid 2196	. . . . 5 ⊢ (.g‘(oppr‘𝑅)) = (.g‘(oppr‘𝑅))
14		eqid 2196	. . . . 5 ⊢ (.r‘(oppr‘𝑅)) = (.r‘(oppr‘𝑅))
15	12, 13, 14	mulgass2 13690	. . . 4 ⊢ (((oppr‘𝑅) ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑌 ∈ (Base‘(oppr‘𝑅)) ∧ 𝑋 ∈ (Base‘(oppr‘𝑅)))) → ((𝑁(.g‘(oppr‘𝑅))𝑌)(.r‘(oppr‘𝑅))𝑋) = (𝑁(.g‘(oppr‘𝑅))(𝑌(.r‘(oppr‘𝑅))𝑋)))
16	3, 4, 9, 11, 15	syl13anc 1251	. . 3 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → ((𝑁(.g‘(oppr‘𝑅))𝑌)(.r‘(oppr‘𝑅))𝑋) = (𝑁(.g‘(oppr‘𝑅))(𝑌(.r‘(oppr‘𝑅))𝑋)))
17		simpl 109	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝑅 ∈ Ring)
18	3	ringgrpd 13637	. . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (oppr‘𝑅) ∈ Grp)
19	12, 13, 18, 4, 9	mulgcld 13350	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑁(.g‘(oppr‘𝑅))𝑌) ∈ (Base‘(oppr‘𝑅)))
20	19, 8	eleqtrrd 2276	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑁(.g‘(oppr‘𝑅))𝑌) ∈ 𝐵)
21		mulgass3.t	. . . . 5 ⊢ × = (.r‘𝑅)
22	6, 21, 1, 14	opprmulg 13703	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁(.g‘(oppr‘𝑅))𝑌) ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → ((𝑁(.g‘(oppr‘𝑅))𝑌)(.r‘(oppr‘𝑅))𝑋) = (𝑋 × (𝑁(.g‘(oppr‘𝑅))𝑌)))
23	17, 20, 10, 22	syl3anc 1249	. . 3 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → ((𝑁(.g‘(oppr‘𝑅))𝑌)(.r‘(oppr‘𝑅))𝑋) = (𝑋 × (𝑁(.g‘(oppr‘𝑅))𝑌)))
24	6, 21, 1, 14	opprmulg 13703	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ 𝑌 ∈ 𝐵 ∧ 𝑋 ∈ 𝐵) → (𝑌(.r‘(oppr‘𝑅))𝑋) = (𝑋 × 𝑌))
25	17, 5, 10, 24	syl3anc 1249	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑌(.r‘(oppr‘𝑅))𝑋) = (𝑋 × 𝑌))
26	25	oveq2d 5941	. . 3 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑁(.g‘(oppr‘𝑅))(𝑌(.r‘(oppr‘𝑅))𝑋)) = (𝑁(.g‘(oppr‘𝑅))(𝑋 × 𝑌)))
27	16, 23, 26	3eqtr3d 2237	. 2 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑋 × (𝑁(.g‘(oppr‘𝑅))𝑌)) = (𝑁(.g‘(oppr‘𝑅))(𝑋 × 𝑌)))
28		mulgass3.m	. . . . . 6 ⊢ · = (.g‘𝑅)
29	28	a1i 9	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → · = (.g‘𝑅))
30		eqidd 2197	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (.g‘(oppr‘𝑅)) = (.g‘(oppr‘𝑅)))
31	6	a1i 9	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝐵 = (Base‘𝑅))
32		ssidd 3205	. . . . 5 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → 𝐵 ⊆ 𝐵)
33		eqid 2196	. . . . . . . 8 ⊢ (+g‘𝑅) = (+g‘𝑅)
34	6, 33	ringacl 13662	. . . . . . 7 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥(+g‘𝑅)𝑦) ∈ 𝐵)
35	34	3expb 1206	. . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)) → (𝑥(+g‘𝑅)𝑦) ∈ 𝐵)
36	35	adantlr 477	. . . . 5 ⊢ (((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)) → (𝑥(+g‘𝑅)𝑦) ∈ 𝐵)
37	1, 33	oppraddg 13708	. . . . . . 7 ⊢ (𝑅 ∈ Ring → (+g‘𝑅) = (+g‘(oppr‘𝑅)))
38	37	oveqdr 5953	. . . . . 6 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑥(+g‘𝑅)𝑦) = (𝑥(+g‘(oppr‘𝑅))𝑦))
39	38	adantr 276	. . . . 5 ⊢ (((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵)) → (𝑥(+g‘𝑅)𝑦) = (𝑥(+g‘(oppr‘𝑅))𝑦))
40	29, 30, 17, 3, 31, 8, 32, 36, 39	mulgpropdg 13370	. . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → · = (.g‘(oppr‘𝑅)))
41	40	oveqd 5942	. . 3 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑁 · 𝑌) = (𝑁(.g‘(oppr‘𝑅))𝑌))
42	41	oveq2d 5941	. 2 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑋 × (𝑁 · 𝑌)) = (𝑋 × (𝑁(.g‘(oppr‘𝑅))𝑌)))
43	40	oveqd 5942	. 2 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑁 · (𝑋 × 𝑌)) = (𝑁(.g‘(oppr‘𝑅))(𝑋 × 𝑌)))
44	27, 42, 43	3eqtr4d 2239	1 ⊢ ((𝑅 ∈ Ring ∧ (𝑁 ∈ ℤ ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵)) → (𝑋 × (𝑁 · 𝑌)) = (𝑁 · (𝑋 × 𝑌)))

Syntax hints:   → wi 4   ∧ wa 104   ∧ w3a 980   = wceq 1364   ∈ wcel 2167  ‘cfv 5259  (class class class)co 5925  ℤcz 9343  Basecbs 12703  +_gcplusg 12780  ._rcmulr 12781  ._gcmg 13325  Ringcrg 13628  opp_rcoppr 13699

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 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-10 1519  ax-11 1520  ax-i12 1521  ax-bndl 1523  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-13 2169  ax-14 2170  ax-ext 2178  ax-coll 4149  ax-sep 4152  ax-nul 4160  ax-pow 4208  ax-pr 4243  ax-un 4469  ax-setind 4574  ax-iinf 4625  ax-cnex 7987  ax-resscn 7988  ax-1cn 7989  ax-1re 7990  ax-icn 7991  ax-addcl 7992  ax-addrcl 7993  ax-mulcl 7994  ax-addcom 7996  ax-addass 7998  ax-distr 8000  ax-i2m1 8001  ax-0lt1 8002  ax-0id 8004  ax-rnegex 8005  ax-cnre 8007  ax-pre-ltirr 8008  ax-pre-ltwlin 8009  ax-pre-lttrn 8010  ax-pre-ltadd 8012

This theorem depends on definitions:  df-bi 117  df-dc 836  df-3or 981  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1475  df-sb 1777  df-eu 2048  df-mo 2049  df-clab 2183  df-cleq 2189  df-clel 2192  df-nfc 2328  df-ne 2368  df-nel 2463  df-ral 2480  df-rex 2481  df-reu 2482  df-rmo 2483  df-rab 2484  df-v 2765  df-sbc 2990  df-csb 3085  df-dif 3159  df-un 3161  df-in 3163  df-ss 3170  df-nul 3452  df-if 3563  df-pw 3608  df-sn 3629  df-pr 3630  df-op 3632  df-uni 3841  df-int 3876  df-iun 3919  df-br 4035  df-opab 4096  df-mpt 4097  df-tr 4133  df-id 4329  df-iord 4402  df-on 4404  df-ilim 4405  df-suc 4407  df-iom 4628  df-xp 4670  df-rel 4671  df-cnv 4672  df-co 4673  df-dm 4674  df-rn 4675  df-res 4676  df-ima 4677  df-iota 5220  df-fun 5261  df-fn 5262  df-f 5263  df-f1 5264  df-fo 5265  df-f1o 5266  df-fv 5267  df-riota 5880  df-ov 5928  df-oprab 5929  df-mpo 5930  df-1st 6207  df-2nd 6208  df-tpos 6312  df-recs 6372  df-frec 6458  df-pnf 8080  df-mnf 8081  df-xr 8082  df-ltxr 8083  df-le 8084  df-sub 8216  df-neg 8217  df-inn 9008  df-2 9066  df-3 9067  df-n0 9267  df-z 9344  df-uz 9619  df-fz 10101  df-seqfrec 10557  df-ndx 12706  df-slot 12707  df-base 12709  df-sets 12710  df-plusg 12793  df-mulr 12794  df-0g 12960  df-mgm 13058  df-sgrp 13104  df-mnd 13119  df-grp 13205  df-minusg 13206  df-mulg 13326  df-mgp 13553  df-ur 13592  df-ring 13630  df-oppr 13700

This theorem is referenced by: (None)