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Mirrors > Home > ILE Home > Th. List > grplid | Unicode version |
Description: The identity element of a group is a left identity. (Contributed by NM, 18-Aug-2011.) |
Ref | Expression |
---|---|
grpbn0.b |
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grplid.p |
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grplid.o |
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Ref | Expression |
---|---|
grplid |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | grpmnd 13082 |
. 2
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2 | grpbn0.b |
. . 3
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3 | grplid.p |
. . 3
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4 | grplid.o |
. . 3
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5 | 2, 3, 4 | mndlid 13019 |
. 2
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6 | 1, 5 | sylan 283 |
1
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Colors of variables: wff set class |
Syntax hints: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-pow 4204 ax-pr 4239 ax-un 4465 ax-cnex 7965 ax-resscn 7966 ax-1re 7968 ax-addrcl 7971 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-eu 2045 df-mo 2046 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-reu 2479 df-rmo 2480 df-rab 2481 df-v 2762 df-sbc 2987 df-csb 3082 df-un 3158 df-in 3160 df-ss 3167 df-pw 3604 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-int 3872 df-br 4031 df-opab 4092 df-mpt 4093 df-id 4325 df-xp 4666 df-rel 4667 df-cnv 4668 df-co 4669 df-dm 4670 df-rn 4671 df-res 4672 df-iota 5216 df-fun 5257 df-fn 5258 df-fv 5263 df-riota 5874 df-ov 5922 df-inn 8985 df-2 9043 df-ndx 12624 df-slot 12625 df-base 12627 df-plusg 12711 df-0g 12872 df-mgm 12942 df-sgrp 12988 df-mnd 13001 df-grp 13078 |
This theorem is referenced by: grplidd 13108 grprcan 13112 grpid 13114 isgrpid2 13115 grprinv 13126 grpinvid1 13127 grpinvid2 13128 grpidinv2 13133 grpinvid 13135 grpressid 13136 grplcan 13137 grpasscan1 13138 grpidlcan 13141 grplmulf1o 13149 grpidssd 13151 grpinvadd 13153 grpinvval2 13158 grplactcnv 13177 imasgrp 13184 mulgaddcom 13219 mulgdirlem 13226 subg0 13253 issubg2m 13262 issubg4m 13266 isnsg3 13280 nmzsubg 13283 ssnmz 13284 eqger 13297 eqgid 13299 qusgrp 13305 qus0 13308 ghmid 13322 conjghm 13349 abladdsub4 13387 ablpncan2 13389 ablpnpcan 13393 ablnncan 13394 rnglz 13444 rngrz 13445 ringlz 13542 ringrz 13543 lmod0vlid 13817 lmod0vs 13820 |
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