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Theorem rngrz 15706
Description: The zero of a unital ring is a right absorbing element. (Contributed by FL, 31-Aug-2009.)
Hypotheses
Ref Expression
rngz.b  |-  B  =  ( Base `  R
)
rngz.t  |-  .x.  =  ( .r `  R )
rngz.z  |-  .0.  =  ( 0g `  R )
Assertion
Ref Expression
rngrz  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  .x.  .0.  )  =  .0.  )

Proof of Theorem rngrz
StepHypRef Expression
1 rnggrp 15674 . . . . . 6  |-  ( R  e.  Ring  ->  R  e. 
Grp )
2 rngz.b . . . . . . . 8  |-  B  =  ( Base `  R
)
3 rngz.z . . . . . . . 8  |-  .0.  =  ( 0g `  R )
42, 3grpidcl 14838 . . . . . . 7  |-  ( R  e.  Grp  ->  .0.  e.  B )
5 eqid 2438 . . . . . . . 8  |-  ( +g  `  R )  =  ( +g  `  R )
62, 5, 3grplid 14840 . . . . . . 7  |-  ( ( R  e.  Grp  /\  .0.  e.  B )  -> 
(  .0.  ( +g  `  R )  .0.  )  =  .0.  )
74, 6mpdan 651 . . . . . 6  |-  ( R  e.  Grp  ->  (  .0.  ( +g  `  R
)  .0.  )  =  .0.  )
81, 7syl 16 . . . . 5  |-  ( R  e.  Ring  ->  (  .0.  ( +g  `  R
)  .0.  )  =  .0.  )
98adantr 453 . . . 4  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  (  .0.  ( +g  `  R
)  .0.  )  =  .0.  )
109oveq2d 6100 . . 3  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  .x.  (  .0.  ( +g  `  R )  .0.  ) )  =  ( X  .x.  .0.  )
)
11 simpr 449 . . . . 5  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  X  e.  B )
121, 4syl 16 . . . . . 6  |-  ( R  e.  Ring  ->  .0.  e.  B )
1312adantr 453 . . . . 5  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  .0.  e.  B )
1411, 13, 133jca 1135 . . . 4  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  e.  B  /\  .0.  e.  B  /\  .0.  e.  B ) )
15 rngz.t . . . . 5  |-  .x.  =  ( .r `  R )
162, 5, 15rngdi 15687 . . . 4  |-  ( ( R  e.  Ring  /\  ( X  e.  B  /\  .0.  e.  B  /\  .0.  e.  B ) )  -> 
( X  .x.  (  .0.  ( +g  `  R
)  .0.  ) )  =  ( ( X 
.x.  .0.  ) ( +g  `  R ) ( X  .x.  .0.  )
) )
1714, 16syldan 458 . . 3  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  .x.  (  .0.  ( +g  `  R )  .0.  ) )  =  ( ( X  .x.  .0.  ) ( +g  `  R
) ( X  .x.  .0.  ) ) )
181adantr 453 . . . 4  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  R  e.  Grp )
192, 15rngcl 15682 . . . . 5  |-  ( ( R  e.  Ring  /\  X  e.  B  /\  .0.  e.  B )  ->  ( X  .x.  .0.  )  e.  B )
2013, 19mpd3an3 1281 . . . 4  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  .x.  .0.  )  e.  B )
212, 5, 3grplid 14840 . . . . 5  |-  ( ( R  e.  Grp  /\  ( X  .x.  .0.  )  e.  B )  ->  (  .0.  ( +g  `  R
) ( X  .x.  .0.  ) )  =  ( X  .x.  .0.  )
)
2221eqcomd 2443 . . . 4  |-  ( ( R  e.  Grp  /\  ( X  .x.  .0.  )  e.  B )  ->  ( X  .x.  .0.  )  =  (  .0.  ( +g  `  R ) ( X 
.x.  .0.  ) )
)
2318, 20, 22syl2anc 644 . . 3  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  .x.  .0.  )  =  (  .0.  ( +g  `  R ) ( X 
.x.  .0.  ) )
)
2410, 17, 233eqtr3d 2478 . 2  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  (
( X  .x.  .0.  ) ( +g  `  R
) ( X  .x.  .0.  ) )  =  (  .0.  ( +g  `  R
) ( X  .x.  .0.  ) ) )
252, 5grprcan 14843 . . 3  |-  ( ( R  e.  Grp  /\  ( ( X  .x.  .0.  )  e.  B  /\  .0.  e.  B  /\  ( X  .x.  .0.  )  e.  B ) )  -> 
( ( ( X 
.x.  .0.  ) ( +g  `  R ) ( X  .x.  .0.  )
)  =  (  .0.  ( +g  `  R
) ( X  .x.  .0.  ) )  <->  ( X  .x.  .0.  )  =  .0.  ) )
2618, 20, 13, 20, 25syl13anc 1187 . 2  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  (
( ( X  .x.  .0.  ) ( +g  `  R
) ( X  .x.  .0.  ) )  =  (  .0.  ( +g  `  R
) ( X  .x.  .0.  ) )  <->  ( X  .x.  .0.  )  =  .0.  ) )
2724, 26mpbid 203 1  |-  ( ( R  e.  Ring  /\  X  e.  B )  ->  ( X  .x.  .0.  )  =  .0.  )
Colors of variables: wff set class
Syntax hints:    -> wi 4    <-> wb 178    /\ wa 360    /\ w3a 937    = wceq 1653    e. wcel 1726   ` cfv 5457  (class class class)co 6084   Basecbs 13474   +g cplusg 13534   .rcmulr 13535   0gc0g 13728   Grpcgrp 14690   Ringcrg 15665
This theorem is referenced by:  rngnegr  15709  gsumdixp  15720  dvdsr02  15766  isdrng2  15850  drngmul0or  15861  cntzsubr  15905  isabvd  15913  lmodvs0  15989  rrgeq0  16355  unitrrg  16358  domneq0  16362  psrridm  16473  mpllsslem  16504  mplsubrglem  16507  mplcoe1  16533  mplmon2  16558  evlslem4  16569  coe1tmmul2  16673  ocvlss  16904  mdegvscale  20003  mdegmullem  20006  coe1mul3  20027  deg1mul3le  20044  ply1divex  20064  ply1rem  20091  fta1blem  20096  kerunit  24266  uvcresum  27233  mamurid  27450  cntzsdrg  27501  lfl0f  29941  lfl0sc  29954  lkrlss  29967  lcfrlem33  32447  hdmapinvlem3  32795  hdmapglem7b  32803
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1556  ax-5 1567  ax-17 1627  ax-9 1667  ax-8 1688  ax-13 1728  ax-14 1730  ax-6 1745  ax-7 1750  ax-11 1762  ax-12 1951  ax-ext 2419  ax-sep 4333  ax-nul 4341  ax-pow 4380  ax-pr 4406  ax-un 4704  ax-cnex 9051  ax-resscn 9052  ax-1cn 9053  ax-icn 9054  ax-addcl 9055  ax-addrcl 9056  ax-mulcl 9057  ax-mulrcl 9058  ax-mulcom 9059  ax-addass 9060  ax-mulass 9061  ax-distr 9062  ax-i2m1 9063  ax-1ne0 9064  ax-1rid 9065  ax-rnegex 9066  ax-rrecex 9067  ax-cnre 9068  ax-pre-lttri 9069  ax-pre-lttrn 9070  ax-pre-ltadd 9071  ax-pre-mulgt0 9072
This theorem depends on definitions:  df-bi 179  df-or 361  df-an 362  df-3or 938  df-3an 939  df-tru 1329  df-ex 1552  df-nf 1555  df-sb 1660  df-eu 2287  df-mo 2288  df-clab 2425  df-cleq 2431  df-clel 2434  df-nfc 2563  df-ne 2603  df-nel 2604  df-ral 2712  df-rex 2713  df-reu 2714  df-rmo 2715  df-rab 2716  df-v 2960  df-sbc 3164  df-csb 3254  df-dif 3325  df-un 3327  df-in 3329  df-ss 3336  df-pss 3338  df-nul 3631  df-if 3742  df-pw 3803  df-sn 3822  df-pr 3823  df-tp 3824  df-op 3825  df-uni 4018  df-iun 4097  df-br 4216  df-opab 4270  df-mpt 4271  df-tr 4306  df-eprel 4497  df-id 4501  df-po 4506  df-so 4507  df-fr 4544  df-we 4546  df-ord 4587  df-on 4588  df-lim 4589  df-suc 4590  df-om 4849  df-xp 4887  df-rel 4888  df-cnv 4889  df-co 4890  df-dm 4891  df-rn 4892  df-res 4893  df-ima 4894  df-iota 5421  df-fun 5459  df-fn 5460  df-f 5461  df-f1 5462  df-fo 5463  df-f1o 5464  df-fv 5465  df-ov 6087  df-oprab 6088  df-mpt2 6089  df-riota 6552  df-recs 6636  df-rdg 6671  df-er 6908  df-en 7113  df-dom 7114  df-sdom 7115  df-pnf 9127  df-mnf 9128  df-xr 9129  df-ltxr 9130  df-le 9131  df-sub 9298  df-neg 9299  df-nn 10006  df-2 10063  df-ndx 13477  df-slot 13478  df-base 13479  df-sets 13480  df-plusg 13547  df-0g 13732  df-mnd 14695  df-grp 14817  df-mgp 15654  df-rng 15668
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