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Mirrors > Home > MPE Home > Th. List > rrgeq0 | Structured version Visualization version GIF version |
Description: Left-multiplication by a left regular element does not change zeroness. (Contributed by Stefan O'Rear, 28-Mar-2015.) |
Ref | Expression |
---|---|
rrgval.e | β’ πΈ = (RLRegβπ ) |
rrgval.b | β’ π΅ = (Baseβπ ) |
rrgval.t | β’ Β· = (.rβπ ) |
rrgval.z | β’ 0 = (0gβπ ) |
Ref | Expression |
---|---|
rrgeq0 | β’ ((π β Ring β§ π β πΈ β§ π β π΅) β ((π Β· π) = 0 β π = 0 )) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rrgval.e | . . . 4 β’ πΈ = (RLRegβπ ) | |
2 | rrgval.b | . . . 4 β’ π΅ = (Baseβπ ) | |
3 | rrgval.t | . . . 4 β’ Β· = (.rβπ ) | |
4 | rrgval.z | . . . 4 β’ 0 = (0gβπ ) | |
5 | 1, 2, 3, 4 | rrgeq0i 21197 | . . 3 β’ ((π β πΈ β§ π β π΅) β ((π Β· π) = 0 β π = 0 )) |
6 | 5 | 3adant1 1127 | . 2 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β ((π Β· π) = 0 β π = 0 )) |
7 | simp1 1133 | . . . 4 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β π β Ring) | |
8 | 1, 2, 3, 4 | rrgval 21195 | . . . . . 6 β’ πΈ = {π₯ β π΅ β£ βπ¦ β π΅ ((π₯ Β· π¦) = 0 β π¦ = 0 )} |
9 | 8 | ssrab3 4075 | . . . . 5 β’ πΈ β π΅ |
10 | simp2 1134 | . . . . 5 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β π β πΈ) | |
11 | 9, 10 | sselid 3975 | . . . 4 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β π β π΅) |
12 | 2, 3, 4 | ringrz 20191 | . . . 4 β’ ((π β Ring β§ π β π΅) β (π Β· 0 ) = 0 ) |
13 | 7, 11, 12 | syl2anc 583 | . . 3 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β (π Β· 0 ) = 0 ) |
14 | oveq2 7412 | . . . 4 β’ (π = 0 β (π Β· π) = (π Β· 0 )) | |
15 | 14 | eqeq1d 2728 | . . 3 β’ (π = 0 β ((π Β· π) = 0 β (π Β· 0 ) = 0 )) |
16 | 13, 15 | syl5ibrcom 246 | . 2 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β (π = 0 β (π Β· π) = 0 )) |
17 | 6, 16 | impbid 211 | 1 β’ ((π β Ring β§ π β πΈ β§ π β π΅) β ((π Β· π) = 0 β π = 0 )) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 β wb 205 β§ w3a 1084 = wceq 1533 β wcel 2098 βwral 3055 βcfv 6536 (class class class)co 7404 Basecbs 17151 .rcmulr 17205 0gc0g 17392 Ringcrg 20136 RLRegcrlreg 21187 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2163 ax-ext 2697 ax-sep 5292 ax-nul 5299 ax-pow 5356 ax-pr 5420 ax-un 7721 ax-cnex 11165 ax-resscn 11166 ax-1cn 11167 ax-icn 11168 ax-addcl 11169 ax-addrcl 11170 ax-mulcl 11171 ax-mulrcl 11172 ax-mulcom 11173 ax-addass 11174 ax-mulass 11175 ax-distr 11176 ax-i2m1 11177 ax-1ne0 11178 ax-1rid 11179 ax-rnegex 11180 ax-rrecex 11181 ax-cnre 11182 ax-pre-lttri 11183 ax-pre-lttrn 11184 ax-pre-ltadd 11185 ax-pre-mulgt0 11186 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 845 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2704 df-cleq 2718 df-clel 2804 df-nfc 2879 df-ne 2935 df-nel 3041 df-ral 3056 df-rex 3065 df-rmo 3370 df-reu 3371 df-rab 3427 df-v 3470 df-sbc 3773 df-csb 3889 df-dif 3946 df-un 3948 df-in 3950 df-ss 3960 df-pss 3962 df-nul 4318 df-if 4524 df-pw 4599 df-sn 4624 df-pr 4626 df-op 4630 df-uni 4903 df-iun 4992 df-br 5142 df-opab 5204 df-mpt 5225 df-tr 5259 df-id 5567 df-eprel 5573 df-po 5581 df-so 5582 df-fr 5624 df-we 5626 df-xp 5675 df-rel 5676 df-cnv 5677 df-co 5678 df-dm 5679 df-rn 5680 df-res 5681 df-ima 5682 df-pred 6293 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6488 df-fun 6538 df-fn 6539 df-f 6540 df-f1 6541 df-fo 6542 df-f1o 6543 df-fv 6544 df-riota 7360 df-ov 7407 df-oprab 7408 df-mpo 7409 df-om 7852 df-2nd 7972 df-frecs 8264 df-wrecs 8295 df-recs 8369 df-rdg 8408 df-er 8702 df-en 8939 df-dom 8940 df-sdom 8941 df-pnf 11251 df-mnf 11252 df-xr 11253 df-ltxr 11254 df-le 11255 df-sub 11447 df-neg 11448 df-nn 12214 df-2 12276 df-sets 17104 df-slot 17122 df-ndx 17134 df-base 17152 df-plusg 17217 df-0g 17394 df-mgm 18571 df-sgrp 18650 df-mnd 18666 df-grp 18864 df-minusg 18865 df-cmn 19700 df-abl 19701 df-mgp 20038 df-rng 20056 df-ur 20085 df-ring 20138 df-rlreg 21191 |
This theorem is referenced by: rrgsupp 21199 r1pid2 33184 |
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