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Theorem decmul2c 9792
Description: The product of a numeral with a number (with carry). (Contributed by Mario Carneiro, 18-Feb-2014.) (Revised by AV, 6-Sep-2021.)
Hypotheses
Ref Expression
decmul1.p  |-  P  e. 
NN0
decmul1.a  |-  A  e. 
NN0
decmul1.b  |-  B  e. 
NN0
decmul1.n  |-  N  = ; A B
decmul1.0  |-  D  e. 
NN0
decmul1c.e  |-  E  e. 
NN0
decmul2c.c  |-  ( ( P  x.  A )  +  E )  =  C
decmul2c.2  |-  ( P  x.  B )  = ; E D
Assertion
Ref Expression
decmul2c  |-  ( P  x.  N )  = ; C D

Proof of Theorem decmul2c
StepHypRef Expression
1 10nn0 9744 . . 3  |- ; 1 0  e.  NN0
2 decmul1.p . . 3  |-  P  e. 
NN0
3 decmul1.a . . 3  |-  A  e. 
NN0
4 decmul1.b . . 3  |-  B  e. 
NN0
5 decmul1.n . . . 4  |-  N  = ; A B
6 dfdec10 9730 . . . 4  |- ; A B  =  ( (; 1 0  x.  A
)  +  B )
75, 6eqtri 2255 . . 3  |-  N  =  ( (; 1 0  x.  A
)  +  B )
8 decmul1.0 . . 3  |-  D  e. 
NN0
9 decmul1c.e . . 3  |-  E  e. 
NN0
10 decmul2c.c . . 3  |-  ( ( P  x.  A )  +  E )  =  C
11 decmul2c.2 . . . 4  |-  ( P  x.  B )  = ; E D
12 dfdec10 9730 . . . 4  |- ; E D  =  ( (; 1 0  x.  E
)  +  D )
1311, 12eqtri 2255 . . 3  |-  ( P  x.  B )  =  ( (; 1 0  x.  E
)  +  D )
141, 2, 3, 4, 7, 8, 9, 10, 13nummul2c 9776 . 2  |-  ( P  x.  N )  =  ( (; 1 0  x.  C
)  +  D )
15 dfdec10 9730 . 2  |- ; C D  =  ( (; 1 0  x.  C
)  +  D )
1614, 15eqtr4i 2258 1  |-  ( P  x.  N )  = ; C D
Colors of variables: wff set class
Syntax hints:    = wceq 1398    e. wcel 2205  (class class class)co 6058   0cc0 8143   1c1 8144    + caddc 8146    x. cmul 8148   NN0cn0 9513  ;cdc 9727
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 2208  ax-ext 2216  ax-sep 4233  ax-pow 4292  ax-pr 4327  ax-setind 4664  ax-cnex 8234  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-addcom 8243  ax-mulcom 8244  ax-addass 8245  ax-mulass 8246  ax-distr 8247  ax-i2m1 8248  ax-1rid 8250  ax-0id 8251  ax-rnegex 8252  ax-cnre 8254
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-ral 2527  df-rex 2528  df-reu 2529  df-rab 2531  df-v 2817  df-sbc 3046  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-pw 3676  df-sn 3700  df-pr 3701  df-op 3703  df-uni 3920  df-int 3955  df-br 4115  df-opab 4177  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-iota 5317  df-fun 5359  df-fv 5365  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-sub 8462  df-inn 9255  df-2 9313  df-3 9314  df-4 9315  df-5 9316  df-6 9317  df-7 9318  df-8 9319  df-9 9320  df-n0 9514  df-dec 9728
This theorem is referenced by:  decmulnc  9793  2exp8  13158  2exp16  13160
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