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Theorem grpridd 13898
Description: The identity element of a group is a right identity. Deduction associated with grprid 13896. (Contributed by SN, 29-Jan-2025.)
Hypotheses
Ref Expression
grpbn0.b  |-  B  =  ( Base `  G
)
grplid.p  |-  .+  =  ( +g  `  G )
grplid.o  |-  .0.  =  ( 0g `  G )
grplidd.g  |-  ( ph  ->  G  e.  Grp )
grplidd.1  |-  ( ph  ->  X  e.  B )
Assertion
Ref Expression
grpridd  |-  ( ph  ->  ( X  .+  .0.  )  =  X )

Proof of Theorem grpridd
StepHypRef Expression
1 grplidd.g . 2  |-  ( ph  ->  G  e.  Grp )
2 grplidd.1 . 2  |-  ( ph  ->  X  e.  B )
3 grpbn0.b . . 3  |-  B  =  ( Base `  G
)
4 grplid.p . . 3  |-  .+  =  ( +g  `  G )
5 grplid.o . . 3  |-  .0.  =  ( 0g `  G )
63, 4, 5grprid 13896 . 2  |-  ( ( G  e.  Grp  /\  X  e.  B )  ->  ( X  .+  .0.  )  =  X )
71, 2, 6syl2anc 415 1  |-  ( ph  ->  ( X  .+  .0.  )  =  X )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    = wceq 1402    e. wcel 2209   ` cfv 5380  (class class class)co 6088   Basecbs 13410   +g cplusg 13490   0gc0g 13669   Grpcgrp 13864
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-sep 4251  ax-pow 4313  ax-pr 4348  ax-un 4580  ax-cnex 8276  ax-resscn 8277  ax-1re 8279  ax-addrcl 8282
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-br 4132  df-opab 4194  df-mpt 4195  df-id 4440  df-xp 4782  df-rel 4783  df-cnv 4784  df-co 4785  df-dm 4786  df-rn 4787  df-res 4788  df-iota 5340  df-fun 5382  df-fn 5383  df-fv 5388  df-riota 6041  df-ov 6091  df-inn 9314  df-2 9372  df-ndx 13413  df-slot 13414  df-base 13416  df-plusg 13503  df-0g 13671  df-mgm 13735  df-sgrp 13776  df-mnd 13789  df-grp 13867
This theorem is used by:  rnglidlmcl  14926
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