Theorem nummul2c 9552

Description: The product of a decimal integer with a number (with carry). (Contributed by Mario Carneiro, 18-Feb-2014.)

Hypotheses

Ref	Expression
nummul1c.1	|- T e. NN0
nummul1c.2	|- P e. NN0
nummul1c.3	|- A e. NN0
nummul1c.4	|- B e. NN0
nummul1c.5	|- N = ( ( T x. A ) + B )
nummul1c.6	|- D e. NN0
nummul1c.7	|- E e. NN0
nummul2c.7	|- ( ( P x. A ) + E ) = C
nummul2c.8	|- ( P x. B ) = ( ( T x. E ) + D )

Assertion

Ref	Expression
nummul2c	|- ( P x. N ) = ( ( T x. C ) + D )

Proof of Theorem nummul2c

Step	Hyp	Ref	Expression
1		nummul1c.5	. . . 4 |- N = ( ( T x. A ) + B )
2		nummul1c.1	. . . . 5 |- T e. NN0
3		nummul1c.3	. . . . 5 |- A e. NN0
4		nummul1c.4	. . . . 5 |- B e. NN0
5	2, 3, 4	numcl 9515	. . . 4 |- ( ( T x. A ) + B ) e. NN0
6	1, 5	eqeltri 2277	. . 3 |- N e. NN0
7	6	nn0cni 9306	. 2 |- N e. CC
8		nummul1c.2	. . 3 |- P e. NN0
9	8	nn0cni 9306	. 2 |- P e. CC
10		nummul1c.6	. . 3 |- D e. NN0
11		nummul1c.7	. . 3 |- E e. NN0
12	3	nn0cni 9306	. . . . . 6 |- A e. CC
13	12, 9	mulcomi 8077	. . . . 5 |- ( A x. P ) = ( P x. A )
14	13	oveq1i 5953	. . . 4 |- ( ( A x. P ) + E ) = ( ( P x. A ) + E )
15		nummul2c.7	. . . 4 |- ( ( P x. A ) + E ) = C
16	14, 15	eqtri 2225	. . 3 |- ( ( A x. P ) + E ) = C
17	4	nn0cni 9306	. . . 4 |- B e. CC
18		nummul2c.8	. . . 4 |- ( P x. B ) = ( ( T x. E ) + D )
19	9, 17, 18	mulcomli 8078	. . 3 |- ( B x. P ) = ( ( T x. E ) + D )
20	2, 8, 3, 4, 1, 10, 11, 16, 19	nummul1c 9551	. 2 |- ( N x. P ) = ( ( T x. C ) + D )
21	7, 9, 20	mulcomli 8078	1 |- ( P x. N ) = ( ( T x. C ) + D )

Syntax hints:   = wceq 1372   e. wcel 2175  (class class class)co 5943   + caddc 7927   x. cmul 7929   NN0cn0 9294

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-in1 615  ax-in2 616  ax-io 710  ax-5 1469  ax-7 1470  ax-gen 1471  ax-ie1 1515  ax-ie2 1516  ax-8 1526  ax-10 1527  ax-11 1528  ax-i12 1529  ax-bndl 1531  ax-4 1532  ax-17 1548  ax-i9 1552  ax-ial 1556  ax-i5r 1557  ax-14 2178  ax-ext 2186  ax-sep 4161  ax-pow 4217  ax-pr 4252  ax-setind 4584  ax-cnex 8015  ax-resscn 8016  ax-1cn 8017  ax-1re 8018  ax-icn 8019  ax-addcl 8020  ax-addrcl 8021  ax-mulcl 8022  ax-addcom 8024  ax-mulcom 8025  ax-addass 8026  ax-mulass 8027  ax-distr 8028  ax-i2m1 8029  ax-1rid 8031  ax-0id 8032  ax-rnegex 8033  ax-cnre 8035

This theorem depends on definitions:  df-bi 117  df-3an 982  df-tru 1375  df-fal 1378  df-nf 1483  df-sb 1785  df-eu 2056  df-mo 2057  df-clab 2191  df-cleq 2197  df-clel 2200  df-nfc 2336  df-ne 2376  df-ral 2488  df-rex 2489  df-reu 2490  df-rab 2492  df-v 2773  df-sbc 2998  df-dif 3167  df-un 3169  df-in 3171  df-ss 3178  df-pw 3617  df-sn 3638  df-pr 3639  df-op 3641  df-uni 3850  df-int 3885  df-br 4044  df-opab 4105  df-id 4339  df-xp 4680  df-rel 4681  df-cnv 4682  df-co 4683  df-dm 4684  df-iota 5231  df-fun 5272  df-fv 5278  df-riota 5898  df-ov 5946  df-oprab 5947  df-mpo 5948  df-sub 8244  df-inn 9036  df-n0 9295

This theorem is referenced by:  decmul2c  9568