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Theorem adddird 8351
Description: Distributive law (right-distributivity). (Contributed by Mario Carneiro, 27-May-2016.)
Hypotheses
Ref Expression
addcld.1  |-  ( ph  ->  A  e.  CC )
addcld.2  |-  ( ph  ->  B  e.  CC )
addassd.3  |-  ( ph  ->  C  e.  CC )
Assertion
Ref Expression
adddird  |-  ( ph  ->  ( ( A  +  B )  x.  C
)  =  ( ( A  x.  C )  +  ( B  x.  C ) ) )

Proof of Theorem adddird
StepHypRef Expression
1 addcld.1 . 2  |-  ( ph  ->  A  e.  CC )
2 addcld.2 . 2  |-  ( ph  ->  B  e.  CC )
3 addassd.3 . 2  |-  ( ph  ->  C  e.  CC )
4 adddir 8317 . 2  |-  ( ( A  e.  CC  /\  B  e.  CC  /\  C  e.  CC )  ->  (
( A  +  B
)  x.  C )  =  ( ( A  x.  C )  +  ( B  x.  C
) ) )
51, 2, 3, 4syl3anc 1278 1  |-  ( ph  ->  ( ( A  +  B )  x.  C
)  =  ( ( A  x.  C )  +  ( B  x.  C ) ) )
Colors of variables:    wff set class
This proof depends on syntax axioms:    -> wi 4    = wceq 1402    e. wcel 2209  (class class class)co 6085   CCcc 8177    + caddc 8182    x. cmul 8184
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-ext 2220  ax-addcl 8275  ax-mulcom 8280  ax-distr 8283
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-rex 2534  df-v 2823  df-un 3224  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-br 4131  df-iota 5337  df-fv 5385  df-ov 6088
This theorem is used by:  adddirp1d  8352  joinlmuladdmuld  8353  1p1times  8460  recextlem1  8979  divdirap  9027  lincmble  10406  subsq  11083  subsq2  11084  binom2  11088  binom3  11094  remullem  11636  resqrexlemover  11776  resqrexlemcalc1  11780  bdtrilem  12005  binomlem  12250  mul4sqlem  13172  dvexp  15812  plyaddlem1  15848  rpcxpadd  16007  binom4  16081  lgsquad2lem1  16200  2sqlem4  16237
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