Theorem adddirp1d 8316

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

Step	Hyp	Ref	Expression
1		adddirp1d.a	. . 3 |- ( ph -> A e. CC )
2		1cnd 8306	. . 3 |- ( ph -> 1 e. CC )
3		adddirp1d.b	. . 3 |- ( ph -> B e. CC )
4	1, 2, 3	adddird 8315	. 2 |- ( ph -> ( ( A + 1 ) x. B ) = ( ( A x. B ) + ( 1 x. B ) ) )
5	3	mullidd 8308	. . 3 |- ( ph -> ( 1 x. B ) = B )
6	5	oveq2d 6074	. 2 |- ( ph -> ( ( A x. B ) + ( 1 x. B ) ) = ( ( A x. B ) + B ) )
7	4, 6	eqtrd 2267	1 |- ( ph -> ( ( A + 1 ) x. B ) = ( ( A x. B ) + B ) )

Syntax hints:   -> wi 4   = wceq 1398   e. wcel 2205  (class class class)co 6058   CCcc 8141   1c1 8144   + caddc 8146   x. cmul 8148

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2216  ax-resscn 8235  ax-1cn 8236  ax-icn 8238  ax-addcl 8239  ax-mulcl 8241  ax-mulcom 8244  ax-mulass 8246  ax-distr 8247  ax-1rid 8250  ax-cnre 8254

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ral 2527  df-rex 2528  df-v 2817  df-un 3218  df-in 3220  df-ss 3227  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-br 4115  df-iota 5317  df-fv 5365  df-ov 6061

This theorem is referenced by:  modqvalp1  10729  hashxp  11216  fsumconst  12165  divalglemnqt  12631  pcexp  13032  mulgnnass  13910  cnfldmulg  14850  2lgsoddprmlem3d  16109