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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 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 2765 | . . 3 ⊢ (mulGrp‘𝑅) = (mulGrp‘𝑅) | |
| 2 | 1 | ringmgp 20367 | . 2 ⊢ (𝑅 ∈ Ring → (mulGrp‘𝑅) ∈ Mnd) |
| 3 | ringcl.b | . . . 4 ⊢ 𝐵 = (Base‘𝑅) | |
| 4 | 1, 3 | mgpbas 20267 | . . 3 ⊢ 𝐵 = (Base‘(mulGrp‘𝑅)) |
| 5 | ringcl.t | . . . 4 ⊢ · = (.r‘𝑅) | |
| 6 | 1, 5 | mgpplusg 20266 | . . 3 ⊢ · = (+g‘(mulGrp‘𝑅)) |
| 7 | 4, 6 | mndass 18835 | . 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 2146 ‘cfv 6540 (class class class)co 7419 Basecbs 17293 .rcmulr 17335 Mndcmnd 18826 mulGrpcmgp 20262 Ringcrg 20361 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-cnex 11173 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-addrcl 11178 ax-mulcl 11179 ax-mulrcl 11180 ax-mulcom 11181 ax-addass 11182 ax-mulass 11183 ax-distr 11184 ax-i2m1 11185 ax-1ne0 11186 ax-1rid 11187 ax-rnegex 11188 ax-rrecex 11189 ax-cnre 11190 ax-pre-lttri 11191 ax-pre-lttrn 11192 ax-pre-ltadd 11193 ax-pre-mulgt0 11194 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6306 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-om 7869 df-2nd 7993 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-pnf 11262 df-mnf 11263 df-xr 11264 df-ltxr 11265 df-le 11266 df-sub 11460 df-neg 11461 df-nn 12251 df-2 12320 df-sets 17248 df-slot 17266 df-ndx 17278 df-base 17294 df-plusg 17347 df-sgrp 18811 df-mnd 18827 df-mgp 20263 df-ring 20363 |
| This theorem is used by: ringassd 20386 ringinvnzdiv 20432 ringmneg1 20435 ringmneg2 20436 imasring 20460 dvdsrtr 20498 dvdsrmul1 20499 unitgrp 20513 dvrass 20538 dvrcan1 20539 rdivmuldivd 20543 subrginv 20739 issubrg2 20743 unitrrg 20854 isdrng3lem2 20904 isdrngd 20920 isdrngdOLD 20922 ornglmullt 21024 sralmod 21360 frlmphl 21983 psrlmod 22161 psrass1 22165 psrass23l 22168 psrass23 22170 mamuass 22611 mamuvs1 22614 mavmulass 22758 mdetrsca 22812 chfacfpmmulgsum2 23074 nrginvrcnlem 24901 ply1divex 26347 dvrcan5 33621 mxidlprm 33819 fedgmullem1 34085 fedgmullem2 34086 mdetpmtr1 34279 mdetpmtr12 34281 mdetlap 34288 matunitlindflem1 38326 lflvscl 39911 lflvsass 39915 eqlkr3 39935 lkrlsp 39936 lcfl7lem 42333 lclkrlem2m 42353 lcfrlem1 42376 hgmapvvlem1 42757 |
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