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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 2761 | . . 3 ⊢ (mulGrp‘𝑅) = (mulGrp‘𝑅) | |
| 2 | 1 | ringmgp 20465 | . 2 ⊢ (𝑅 ∈ Ring → (mulGrp‘𝑅) ∈ Mnd) |
| 3 | ringcl.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
| 4 | 1, 3 | mgpbas 20365 | . . 3 ⊢ 𝐵 = (Base‘(mulGrp‘𝑅)) |
| 5 | ringcl.t | . . . 4 ⊢ · = (.r‘𝑅) | |
| 6 | 1, 5 | mgpplusg 20364 | . . 3 ⊢ · = (+g‘(mulGrp‘𝑅)) |
| 7 | 4, 6 | mndass 18932 | . 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 1570 ∈ wcel 2145 ‘cfv 6538 (class class class)co 7420 Basecbs 17387 .rcmulr 17429 Mndcmnd 18923 mulGrpcmgp 20360 Ringcrg 20459 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7751 ax-cnex 11256 ax-resscn 11257 ax-1cn 11258 ax-icn 11259 ax-addcl 11260 ax-addrcl 11261 ax-mulcl 11262 ax-mulrcl 11263 ax-mulcom 11264 ax-addass 11265 ax-mulass 11266 ax-distr 11267 ax-i2m1 11268 ax-1ne0 11269 ax-1rid 11270 ax-rnegex 11271 ax-rrecex 11272 ax-cnre 11273 ax-pre-lttri 11274 ax-pre-lttrn 11275 ax-pre-ltadd 11276 ax-pre-mulgt0 11277 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 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 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-2nd 8002 df-frecs 8299 df-wrecs 8330 df-recs 8379 df-rdg 8418 df-er 8717 df-en 8974 df-dom 8975 df-sdom 8976 df-pnf 11345 df-mnf 11346 df-xr 11347 df-ltxr 11348 df-le 11349 df-sub 11543 df-neg 11544 df-nn 12336 df-2 12405 df-sets 17342 df-slot 17360 df-ndx 17372 df-base 17388 df-plusg 17441 df-sgrp 18908 df-mnd 18924 df-mgp 20361 df-ring 20461 |
| This theorem is used by: ringassd 20485 ringinvnzdiv 20532 ringmneg1 20535 ringmneg2 20536 imasring 20560 dvdsrtr 20598 dvdsrmul1 20599 unitgrp 20613 dvrass 20638 dvrcan1 20639 rdivmuldivd 20643 subrginv 20840 issubrg2 20844 unitrrg 20955 isdrng3lem2 21006 isdrngd 21022 isdrngdOLD 21024 ornglmullt 21126 sralmod 21462 frlmphl 22087 psrlmod 22267 psrass1 22271 psrass23l 22274 psrass23 22276 mamuass 22717 mamuvs1 22720 mavmulass 22864 mdetrsca 22918 matunitlindflem1 22994 chfacfpmmulgsum2 23183 nrginvrcnlem 25010 ply1divex 26455 dvrcan5 33796 mxidlprm 33995 fedgmullem1 34261 fedgmullem2 34262 mdetpmtr1 34455 mdetpmtr12 34457 mdetlap 34464 lflvscl 40134 lflvsass 40138 eqlkr3 40158 lkrlsp 40159 lcfl7lem 42556 lclkrlem2m 42576 lcfrlem1 42599 hgmapvvlem1 42980 |
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