Theorem nummul2c 9650

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 9613	. . . 4 |- ( ( T x. A ) + B ) e. NN0
6	1, 5	eqeltri 2302	. . 3 |- N e. NN0
7	6	nn0cni 9404	. 2 |- N e. CC
8		nummul1c.2	. . 3 |- P e. NN0
9	8	nn0cni 9404	. 2 |- P e. CC
10		nummul1c.6	. . 3 |- D e. NN0
11		nummul1c.7	. . 3 |- E e. NN0
12	3	nn0cni 9404	. . . . . 6 |- A e. CC
13	12, 9	mulcomi 8175	. . . . 5 |- ( A x. P ) = ( P x. A )
14	13	oveq1i 6023	. . . 4 |- ( ( A x. P ) + E ) = ( ( P x. A ) + E )
15		nummul2c.7	. . . 4 |- ( ( P x. A ) + E ) = C
16	14, 15	eqtri 2250	. . 3 |- ( ( A x. P ) + E ) = C
17	4	nn0cni 9404	. . . 4 |- B e. CC
18		nummul2c.8	. . . 4 |- ( P x. B ) = ( ( T x. E ) + D )
19	9, 17, 18	mulcomli 8176	. . 3 |- ( B x. P ) = ( ( T x. E ) + D )
20	2, 8, 3, 4, 1, 10, 11, 16, 19	nummul1c 9649	. 2 |- ( N x. P ) = ( ( T x. C ) + D )
21	7, 9, 20	mulcomli 8176	1 |- ( P x. N ) = ( ( T x. C ) + D )

Syntax hints:   = wceq 1395   e. wcel 2200  (class class class)co 6013   + caddc 8025   x. cmul 8027   NN0cn0 9392

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 617  ax-in2 618  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-14 2203  ax-ext 2211  ax-sep 4205  ax-pow 4262  ax-pr 4297  ax-setind 4633  ax-cnex 8113  ax-resscn 8114  ax-1cn 8115  ax-1re 8116  ax-icn 8117  ax-addcl 8118  ax-addrcl 8119  ax-mulcl 8120  ax-addcom 8122  ax-mulcom 8123  ax-addass 8124  ax-mulass 8125  ax-distr 8126  ax-i2m1 8127  ax-1rid 8129  ax-0id 8130  ax-rnegex 8131  ax-cnre 8133

This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-ral 2513  df-rex 2514  df-reu 2515  df-rab 2517  df-v 2802  df-sbc 3030  df-dif 3200  df-un 3202  df-in 3204  df-ss 3211  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-int 3927  df-br 4087  df-opab 4149  df-id 4388  df-xp 4729  df-rel 4730  df-cnv 4731  df-co 4732  df-dm 4733  df-iota 5284  df-fun 5326  df-fv 5332  df-riota 5966  df-ov 6016  df-oprab 6017  df-mpo 6018  df-sub 8342  df-inn 9134  df-n0 9393

This theorem is referenced by:  decmul2c  9666