Theorem adddirp1d 8169

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 8158	. . 3 |- ( ph -> 1 e. CC )
3		adddirp1d.b	. . 3 |- ( ph -> B e. CC )
4	1, 2, 3	adddird 8168	. 2 |- ( ph -> ( ( A + 1 ) x. B ) = ( ( A x. B ) + ( 1 x. B ) ) )
5	3	mulid2d 8161	. . 3 |- ( ph -> ( 1 x. B ) = B )
6	5	oveq2d 6016	. 2 |- ( ph -> ( ( A x. B ) + ( 1 x. B ) ) = ( ( A x. B ) + B ) )
7	4, 6	eqtrd 2262	1 |- ( ph -> ( ( A + 1 ) x. B ) = ( ( A x. B ) + B ) )

Syntax hints:   -> wi 4   = wceq 1395   e. wcel 2200  (class class class)co 6000   CCcc 7993   1c1 7996   + caddc 7998   x. cmul 8000

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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-ext 2211  ax-resscn 8087  ax-1cn 8088  ax-icn 8090  ax-addcl 8091  ax-mulcl 8093  ax-mulcom 8096  ax-mulass 8098  ax-distr 8099  ax-1rid 8102  ax-cnre 8106

This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2801  df-un 3201  df-in 3203  df-ss 3210  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3888  df-br 4083  df-iota 5277  df-fv 5325  df-ov 6003

This theorem is referenced by:  modqvalp1  10560  hashxp  11043  fsumconst  11960  divalglemnqt  12426  pcexp  12827  mulgnnass  13689  cnfldmulg  14534  2lgsoddprmlem3d  15783