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Theorem adddiri 7801
Description: Distributive law (right-distributivity). (Contributed by NM, 16-Feb-1995.)
Hypotheses
Ref Expression
axi.1  |-  A  e.  CC
axi.2  |-  B  e.  CC
axi.3  |-  C  e.  CC
Assertion
Ref Expression
adddiri  |-  ( ( A  +  B )  x.  C )  =  ( ( A  x.  C )  +  ( B  x.  C ) )

Proof of Theorem adddiri
StepHypRef Expression
1 axi.1 . 2  |-  A  e.  CC
2 axi.2 . 2  |-  B  e.  CC
3 axi.3 . 2  |-  C  e.  CC
4 adddir 7781 . 2  |-  ( ( A  e.  CC  /\  B  e.  CC  /\  C  e.  CC )  ->  (
( A  +  B
)  x.  C )  =  ( ( A  x.  C )  +  ( B  x.  C
) ) )
51, 2, 3, 4mp3an 1316 1  |-  ( ( A  +  B )  x.  C )  =  ( ( A  x.  C )  +  ( B  x.  C ) )
Colors of variables: wff set class
Syntax hints:    = wceq 1332    e. wcel 1481  (class class class)co 5782   CCcc 7642    + caddc 7647    x. cmul 7649
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1483  ax-10 1484  ax-11 1485  ax-i12 1486  ax-bndl 1487  ax-4 1488  ax-17 1507  ax-i9 1511  ax-ial 1515  ax-i5r 1516  ax-ext 2122  ax-addcl 7740  ax-mulcom 7745  ax-distr 7748
This theorem depends on definitions:  df-bi 116  df-3an 965  df-tru 1335  df-nf 1438  df-sb 1737  df-clab 2127  df-cleq 2133  df-clel 2136  df-nfc 2271  df-rex 2423  df-v 2691  df-un 3080  df-sn 3538  df-pr 3539  df-op 3541  df-uni 3745  df-br 3938  df-iota 5096  df-fv 5139  df-ov 5785
This theorem is referenced by:  numma  9249  binom2i  10432  3dvdsdec  11598  3dvds2dec  11599  sincosq3sgn  12957  sincosq4sgn  12958  cosq23lt0  12962
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