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Theorem adddird 7434
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 7400 . 2  |-  ( ( A  e.  CC  /\  B  e.  CC  /\  C  e.  CC )  ->  (
( A  +  B
)  x.  C )  =  ( ( A  x.  C )  +  ( B  x.  C
) ) )
51, 2, 3, 4syl3anc 1172 1  |-  ( ph  ->  ( ( A  +  B )  x.  C
)  =  ( ( A  x.  C )  +  ( B  x.  C ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1287    e. wcel 1436  (class class class)co 5594   CCcc 7269    + caddc 7274    x. cmul 7276
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 663  ax-5 1379  ax-7 1380  ax-gen 1381  ax-ie1 1425  ax-ie2 1426  ax-8 1438  ax-10 1439  ax-11 1440  ax-i12 1441  ax-bndl 1442  ax-4 1443  ax-17 1462  ax-i9 1466  ax-ial 1470  ax-i5r 1471  ax-ext 2067  ax-addcl 7362  ax-mulcom 7367  ax-distr 7370
This theorem depends on definitions:  df-bi 115  df-3an 924  df-tru 1290  df-nf 1393  df-sb 1690  df-clab 2072  df-cleq 2078  df-clel 2081  df-nfc 2214  df-rex 2361  df-v 2616  df-un 2990  df-sn 3431  df-pr 3432  df-op 3434  df-uni 3631  df-br 3815  df-iota 4937  df-fv 4980  df-ov 5597
This theorem is referenced by:  adddirp1d  7435  joinlmuladdmuld  7436  1p1times  7537  recextlem1  8036  divdirap  8080  subsq  9911  subsq2  9912  binom2  9915  binom3  9920  remullem  10146  resqrexlemover  10284  resqrexlemcalc1  10288
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