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Theorem adddirp1d 8352
Description: Distributive law, plus 1 version. (Contributed by Glauco Siliprandi, 11-Dec-2019.)
Hypotheses
Ref Expression
adddirp1d.a  |-  ( ph  ->  A  e.  CC )
adddirp1d.b  |-  ( ph  ->  B  e.  CC )
Assertion
Ref Expression
adddirp1d  |-  ( ph  ->  ( ( A  + 
1 )  x.  B
)  =  ( ( A  x.  B )  +  B ) )

Proof of Theorem adddirp1d
StepHypRef Expression
1 adddirp1d.a . . 3  |-  ( ph  ->  A  e.  CC )
2 1cnd 8342 . . 3  |-  ( ph  ->  1  e.  CC )
3 adddirp1d.b . . 3  |-  ( ph  ->  B  e.  CC )
41, 2, 3adddird 8351 . 2  |-  ( ph  ->  ( ( A  + 
1 )  x.  B
)  =  ( ( A  x.  B )  +  ( 1  x.  B ) ) )
53mullidd 8344 . . 3  |-  ( ph  ->  ( 1  x.  B
)  =  B )
65oveq2d 6101 . 2  |-  ( ph  ->  ( ( A  x.  B )  +  ( 1  x.  B ) )  =  ( ( A  x.  B )  +  B ) )
74, 6eqtrd 2271 1  |-  ( ph  ->  ( ( A  + 
1 )  x.  B
)  =  ( ( A  x.  B )  +  B ) )
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   1c1 8180    + 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-resscn 8271  ax-1cn 8272  ax-icn 8274  ax-addcl 8275  ax-mulcl 8277  ax-mulcom 8280  ax-mulass 8282  ax-distr 8283  ax-1rid 8286  ax-cnre 8290
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-ral 2533  df-rex 2534  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  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:  modqvalp1  10780  hashxp  11267  fsumconst  12221  divalglemnqt  12687  pcexp  13088  mulgnnass  13960  cnfldmulg  14913  2lgsoddprmlem3d  16229
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