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Theorem ringdir 18567
Description: Distributive law for the multiplication operation of a ring (right-distributivity). (Contributed by Steve Rodriguez, 9-Sep-2007.)
Hypotheses
Ref Expression
ringdi.b  |-  B  =  ( Base `  R
)
ringdi.p  |-  .+  =  ( +g  `  R )
ringdi.t  |-  .x.  =  ( .r `  R )
Assertion
Ref Expression
ringdir  |-  ( ( R  e.  Ring  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( ( X  .+  Y )  .x.  Z )  =  ( ( X  .x.  Z
)  .+  ( Y  .x.  Z ) ) )

Proof of Theorem ringdir
StepHypRef Expression
1 ringdi.b . . 3  |-  B  =  ( Base `  R
)
2 ringdi.p . . 3  |-  .+  =  ( +g  `  R )
3 ringdi.t . . 3  |-  .x.  =  ( .r `  R )
41, 2, 3ringi 18560 . 2  |-  ( ( R  e.  Ring  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( ( X  .x.  ( Y  .+  Z ) )  =  ( ( X  .x.  Y )  .+  ( X  .x.  Z ) )  /\  ( ( X 
.+  Y )  .x.  Z )  =  ( ( X  .x.  Z
)  .+  ( Y  .x.  Z ) ) ) )
54simprd 479 1  |-  ( ( R  e.  Ring  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( ( X  .+  Y )  .x.  Z )  =  ( ( X  .x.  Z
)  .+  ( Y  .x.  Z ) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 384    /\ w3a 1037    = wceq 1483    e. wcel 1990   ` cfv 5888  (class class class)co 6650   Basecbs 15857   +g cplusg 15941   .rcmulr 15942   Ringcrg 18547
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-nul 4789
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-iota 5851  df-fv 5896  df-ov 6653  df-ring 18549
This theorem is referenced by:  ringadd2  18575  rngo2times  18576  ringcom  18579  ringlz  18587  ringnegl  18594  rngsubdir  18600  mulgass2  18601  ringrghm  18605  prdsringd  18612  imasring  18619  opprring  18631  issubrg2  18800  cntzsubr  18812  sralmod  19187  psrlmod  19401  psrdir  19407  evlslem1  19515  frlmphl  20120  mamudi  20209  mdetrlin  20408  dvrdir  29790  lflvscl  34364  lflvsdi1  34365  dvhlveclem  36397  lidlrng  41927
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