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Mirrors > Home > MPE Home > Th. List > dvrcan3 | Structured version Visualization version GIF version |
Description: A cancellation law for division. (divcan3 11902 analog.) (Contributed by Mario Carneiro, 2-Jul-2014.) (Revised by Mario Carneiro, 18-Jun-2015.) |
Ref | Expression |
---|---|
dvrass.b | β’ π΅ = (Baseβπ ) |
dvrass.o | β’ π = (Unitβπ ) |
dvrass.d | β’ / = (/rβπ ) |
dvrass.t | β’ Β· = (.rβπ ) |
Ref | Expression |
---|---|
dvrcan3 | β’ ((π β Ring β§ π β π΅ β§ π β π) β ((π Β· π) / π) = π) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp1 1136 | . . 3 β’ ((π β Ring β§ π β π΅ β§ π β π) β π β Ring) | |
2 | simp2 1137 | . . 3 β’ ((π β Ring β§ π β π΅ β§ π β π) β π β π΅) | |
3 | dvrass.b | . . . . 5 β’ π΅ = (Baseβπ ) | |
4 | dvrass.o | . . . . 5 β’ π = (Unitβπ ) | |
5 | 3, 4 | unitcl 20266 | . . . 4 β’ (π β π β π β π΅) |
6 | 5 | 3ad2ant3 1135 | . . 3 β’ ((π β Ring β§ π β π΅ β§ π β π) β π β π΅) |
7 | simp3 1138 | . . 3 β’ ((π β Ring β§ π β π΅ β§ π β π) β π β π) | |
8 | dvrass.d | . . . 4 β’ / = (/rβπ ) | |
9 | dvrass.t | . . . 4 β’ Β· = (.rβπ ) | |
10 | 3, 4, 8, 9 | dvrass 20299 | . . 3 β’ ((π β Ring β§ (π β π΅ β§ π β π΅ β§ π β π)) β ((π Β· π) / π) = (π Β· (π / π))) |
11 | 1, 2, 6, 7, 10 | syl13anc 1372 | . 2 β’ ((π β Ring β§ π β π΅ β§ π β π) β ((π Β· π) / π) = (π Β· (π / π))) |
12 | eqid 2732 | . . . . 5 β’ (1rβπ ) = (1rβπ ) | |
13 | 4, 8, 12 | dvrid 20297 | . . . 4 β’ ((π β Ring β§ π β π) β (π / π) = (1rβπ )) |
14 | 13 | 3adant2 1131 | . . 3 β’ ((π β Ring β§ π β π΅ β§ π β π) β (π / π) = (1rβπ )) |
15 | 14 | oveq2d 7427 | . 2 β’ ((π β Ring β§ π β π΅ β§ π β π) β (π Β· (π / π)) = (π Β· (1rβπ ))) |
16 | 3, 9, 12 | ringridm 20158 | . . 3 β’ ((π β Ring β§ π β π΅) β (π Β· (1rβπ )) = π) |
17 | 16 | 3adant3 1132 | . 2 β’ ((π β Ring β§ π β π΅ β§ π β π) β (π Β· (1rβπ )) = π) |
18 | 11, 15, 17 | 3eqtrd 2776 | 1 β’ ((π β Ring β§ π β π΅ β§ π β π) β ((π Β· π) / π) = π) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β§ w3a 1087 = wceq 1541 β wcel 2106 βcfv 6543 (class class class)co 7411 Basecbs 17148 .rcmulr 17202 1rcur 20075 Ringcrg 20127 Unitcui 20246 /rcdvr 20291 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5285 ax-sep 5299 ax-nul 5306 ax-pow 5363 ax-pr 5427 ax-un 7727 ax-cnex 11168 ax-resscn 11169 ax-1cn 11170 ax-icn 11171 ax-addcl 11172 ax-addrcl 11173 ax-mulcl 11174 ax-mulrcl 11175 ax-mulcom 11176 ax-addass 11177 ax-mulass 11178 ax-distr 11179 ax-i2m1 11180 ax-1ne0 11181 ax-1rid 11182 ax-rnegex 11183 ax-rrecex 11184 ax-cnre 11185 ax-pre-lttri 11186 ax-pre-lttrn 11187 ax-pre-ltadd 11188 ax-pre-mulgt0 11189 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-rmo 3376 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3778 df-csb 3894 df-dif 3951 df-un 3953 df-in 3955 df-ss 3965 df-pss 3967 df-nul 4323 df-if 4529 df-pw 4604 df-sn 4629 df-pr 4631 df-op 4635 df-uni 4909 df-iun 4999 df-br 5149 df-opab 5211 df-mpt 5232 df-tr 5266 df-id 5574 df-eprel 5580 df-po 5588 df-so 5589 df-fr 5631 df-we 5633 df-xp 5682 df-rel 5683 df-cnv 5684 df-co 5685 df-dm 5686 df-rn 5687 df-res 5688 df-ima 5689 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7367 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7858 df-1st 7977 df-2nd 7978 df-tpos 8213 df-frecs 8268 df-wrecs 8299 df-recs 8373 df-rdg 8412 df-er 8705 df-en 8942 df-dom 8943 df-sdom 8944 df-pnf 11254 df-mnf 11255 df-xr 11256 df-ltxr 11257 df-le 11258 df-sub 11450 df-neg 11451 df-nn 12217 df-2 12279 df-3 12280 df-sets 17101 df-slot 17119 df-ndx 17131 df-base 17149 df-ress 17178 df-plusg 17214 df-mulr 17215 df-0g 17391 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-grp 18858 df-minusg 18859 df-cmn 19691 df-abl 19692 df-mgp 20029 df-rng 20047 df-ur 20076 df-ring 20129 df-oppr 20225 df-dvdsr 20248 df-unit 20249 df-invr 20279 df-dvr 20292 |
This theorem is referenced by: irredrmul 20318 cramerimp 22408 lgseisenlem3 27104 orngrmullt 32684 |
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