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| Mirrors > Home > MPE Home > Th. List > ringass | Structured version Visualization version GIF version | ||
| Description: Associative law for multiplication in a ring. (Contributed by Steve Rodriguez, 9-Sep-2007.) (Revised by NM, 27-Aug-2011.) (Revised by Mario Carneiro, 6-Jan-2015.) |
| Ref | Expression |
|---|---|
| ringcl.b | ⊢ 𝐵 = (Base‘𝑅) |
| ringcl.t | ⊢ · = (.r‘𝑅) |
| Ref | Expression |
|---|---|
| ringass | ⊢ ((𝑅 ∈ Ring ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 · 𝑌) · 𝑍) = (𝑋 · (𝑌 · 𝑍))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2760 | . . 3 ⊢ (mulGrp‘𝑅) = (mulGrp‘𝑅) | |
| 2 | 1 | ringmgp 20474 | . 2 ⊢ (𝑅 ∈ Ring → (mulGrp‘𝑅) ∈ Mnd) |
| 3 | ringcl.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
| 4 | 1, 3 | mgpbas 20374 | . . 3 ⊢ 𝐵 = (Base‘(mulGrp‘𝑅)) |
| 5 | ringcl.t | . . . 4 ⊢ · = (.r‘𝑅) | |
| 6 | 1, 5 | mgpplusg 20373 | . . 3 ⊢ · = (+g‘(mulGrp‘𝑅)) |
| 7 | 4, 6 | mndass 18941 | . 2 ⊢ (((mulGrp‘𝑅) ∈ Mnd ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 · 𝑌) · 𝑍) = (𝑋 · (𝑌 · 𝑍))) |
| 8 | 2, 7 | sylan 592 | 1 ⊢ ((𝑅 ∈ Ring ∧ (𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵 ∧ 𝑍 ∈ 𝐵)) → ((𝑋 · 𝑌) · 𝑍) = (𝑋 · (𝑌 · 𝑍))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2144 ‘cfv 6543 (class class class)co 7424 Basecbs 17396 .rcmulr 17438 Mndcmnd 18932 mulGrpcmgp 20369 Ringcrg 20468 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 ax-pre-mulgt0 11284 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-2nd 8006 df-frecs 8307 df-wrecs 8338 df-recs 8387 df-rdg 8426 df-er 8725 df-en 8982 df-dom 8983 df-sdom 8984 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-sub 11550 df-neg 11551 df-nn 12343 df-2 12412 df-sets 17351 df-slot 17369 df-ndx 17381 df-base 17397 df-plusg 17450 df-sgrp 18917 df-mnd 18933 df-mgp 20370 df-ring 20470 |
| This theorem is used by: ringassd 20494 ringinvnzdiv 20541 ringmneg1 20544 ringmneg2 20545 imasring 20569 dvdsrtr 20607 dvdsrmul1 20608 unitgrp 20622 dvrass 20647 dvrcan1 20648 rdivmuldivd 20652 subrginv 20849 issubrg2 20853 unitrrg 20964 isdrng3lem2 21015 isdrngd 21031 isdrngdOLD 21033 ornglmullt 21135 sralmod 21471 frlmphl 22096 psrlmod 22276 psrass1 22280 psrass23l 22283 psrass23 22285 mamuass 22726 mamuvs1 22729 mavmulass 22873 mdetrsca 22927 matunitlindflem1 23003 chfacfpmmulgsum2 23192 nrginvrcnlem 25019 ply1divex 26464 dvrcan5 33846 mxidlprm 34045 fedgmullem1 34311 fedgmullem2 34312 mdetpmtr1 34505 mdetpmtr12 34507 mdetlap 34514 lflvscl 40271 lflvsass 40275 eqlkr3 40295 lkrlsp 40296 lcfl7lem 42693 lclkrlem2m 42713 lcfrlem1 42736 hgmapvvlem1 43117 |
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