Theorem numaddc 9702

Description: Add two decimal integers M and N (with carry). (Contributed by Mario Carneiro, 18-Feb-2014.)

Hypotheses

Ref	Expression
numma.1	|- T e. NN0
numma.2	|- A e. NN0
numma.3	|- B e. NN0
numma.4	|- C e. NN0
numma.5	|- D e. NN0
numma.6	|- M = ( ( T x. A ) + B )
numma.7	|- N = ( ( T x. C ) + D )
numaddc.8	|- F e. NN0
numaddc.9	|- ( ( A + C ) + 1 ) = E
numaddc.10	|- ( B + D ) = ( ( T x. 1 ) + F )

Assertion

Ref	Expression
numaddc	|- ( M + N ) = ( ( T x. E ) + F )

Proof of Theorem numaddc

Step	Hyp	Ref	Expression
1		numma.6	. . . . . 6 |- M = ( ( T x. A ) + B )
2		numma.1	. . . . . . 7 |- T e. NN0
3		numma.2	. . . . . . 7 |- A e. NN0
4		numma.3	. . . . . . 7 |- B e. NN0
5	2, 3, 4	numcl 9667	. . . . . 6 |- ( ( T x. A ) + B ) e. NN0
6	1, 5	eqeltri 2304	. . . . 5 |- M e. NN0
7	6	nn0cni 9456	. . . 4 |- M e. CC
8	7	mulridi 8224	. . 3 |- ( M x. 1 ) = M
9	8	oveq1i 6038	. 2 |- ( ( M x. 1 ) + N ) = ( M + N )
10		numma.4	. . 3 |- C e. NN0
11		numma.5	. . 3 |- D e. NN0
12		numma.7	. . 3 |- N = ( ( T x. C ) + D )
13		1nn0 9460	. . 3 |- 1 e. NN0
14		numaddc.8	. . 3 |- F e. NN0
15	3	nn0cni 9456	. . . . . 6 |- A e. CC
16	15	mulridi 8224	. . . . 5 |- ( A x. 1 ) = A
17	16	oveq1i 6038	. . . 4 |- ( ( A x. 1 ) + ( C + 1 ) ) = ( A + ( C + 1 ) )
18	10	nn0cni 9456	. . . . 5 |- C e. CC
19		ax-1cn 8168	. . . . 5 |- 1 e. CC
20	15, 18, 19	addassi 8230	. . . 4 |- ( ( A + C ) + 1 ) = ( A + ( C + 1 ) )
21		numaddc.9	. . . 4 |- ( ( A + C ) + 1 ) = E
22	17, 20, 21	3eqtr2i 2258	. . 3 |- ( ( A x. 1 ) + ( C + 1 ) ) = E
23	4	nn0cni 9456	. . . . . 6 |- B e. CC
24	23	mulridi 8224	. . . . 5 |- ( B x. 1 ) = B
25	24	oveq1i 6038	. . . 4 |- ( ( B x. 1 ) + D ) = ( B + D )
26		numaddc.10	. . . 4 |- ( B + D ) = ( ( T x. 1 ) + F )
27	25, 26	eqtri 2252	. . 3 |- ( ( B x. 1 ) + D ) = ( ( T x. 1 ) + F )
28	2, 3, 4, 10, 11, 1, 12, 13, 14, 13, 22, 27	nummac 9699	. 2 |- ( ( M x. 1 ) + N ) = ( ( T x. E ) + F )
29	9, 28	eqtr3i 2254	1 |- ( M + N ) = ( ( T x. E ) + F )

Syntax hints:   = wceq 1398   e. wcel 2202  (class class class)co 6028   1c1 8076   + caddc 8078   x. cmul 8080   NN0cn0 9444

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 619  ax-in2 620  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-14 2205  ax-ext 2213  ax-sep 4212  ax-pow 4270  ax-pr 4305  ax-setind 4641  ax-cnex 8166  ax-resscn 8167  ax-1cn 8168  ax-1re 8169  ax-icn 8170  ax-addcl 8171  ax-addrcl 8172  ax-mulcl 8173  ax-addcom 8175  ax-mulcom 8176  ax-addass 8177  ax-mulass 8178  ax-distr 8179  ax-i2m1 8180  ax-1rid 8182  ax-0id 8183  ax-rnegex 8184  ax-cnre 8186

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ne 2404  df-ral 2516  df-rex 2517  df-reu 2518  df-rab 2520  df-v 2805  df-sbc 3033  df-dif 3203  df-un 3205  df-in 3207  df-ss 3214  df-pw 3658  df-sn 3679  df-pr 3680  df-op 3682  df-uni 3899  df-int 3934  df-br 4094  df-opab 4156  df-id 4396  df-xp 4737  df-rel 4738  df-cnv 4739  df-co 4740  df-dm 4741  df-iota 5293  df-fun 5335  df-fv 5341  df-riota 5981  df-ov 6031  df-oprab 6032  df-mpo 6033  df-sub 8394  df-inn 9186  df-n0 9445

This theorem is referenced by:  decaddc  9709