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Theorem divadddivap 8895
Description: Addition of two ratios. (Contributed by Jim Kingdon, 26-Feb-2020.)
Assertion
Ref Expression
divadddivap  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( A  /  C )  +  ( B  /  D
) )  =  ( ( ( A  x.  D )  +  ( B  x.  C ) )  /  ( C  x.  D ) ) )

Proof of Theorem divadddivap
StepHypRef Expression
1 mulcl 8147 . . . . 5  |-  ( ( A  e.  CC  /\  D  e.  CC )  ->  ( A  x.  D
)  e.  CC )
21ad2ant2r 509 . . . 4  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( D  e.  CC  /\  D #  0 ) )  ->  ( A  x.  D )  e.  CC )
32adantrl 478 . . 3  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( A  x.  D )  e.  CC )
4 mulcl 8147 . . . . 5  |-  ( ( B  e.  CC  /\  C  e.  CC )  ->  ( B  x.  C
)  e.  CC )
54adantrr 479 . . . 4  |-  ( ( B  e.  CC  /\  ( C  e.  CC  /\  C #  0 ) )  ->  ( B  x.  C )  e.  CC )
65ad2ant2lr 510 . . 3  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( B  x.  C )  e.  CC )
7 mulcl 8147 . . . . . 6  |-  ( ( C  e.  CC  /\  D  e.  CC )  ->  ( C  x.  D
)  e.  CC )
87ad2ant2r 509 . . . . 5  |-  ( ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) )  ->  ( C  x.  D )  e.  CC )
9 mulap0 8822 . . . . 5  |-  ( ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) )  ->  ( C  x.  D ) #  0 )
108, 9jca 306 . . . 4  |-  ( ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) )  ->  ( ( C  x.  D )  e.  CC  /\  ( C  x.  D ) #  0 ) )
1110adantl 277 . . 3  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( C  x.  D )  e.  CC  /\  ( C  x.  D ) #  0 ) )
12 divdirap 8865 . . 3  |-  ( ( ( A  x.  D
)  e.  CC  /\  ( B  x.  C
)  e.  CC  /\  ( ( C  x.  D )  e.  CC  /\  ( C  x.  D
) #  0 ) )  ->  ( ( ( A  x.  D )  +  ( B  x.  C ) )  / 
( C  x.  D
) )  =  ( ( ( A  x.  D )  /  ( C  x.  D )
)  +  ( ( B  x.  C )  /  ( C  x.  D ) ) ) )
133, 6, 11, 12syl3anc 1271 . 2  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( ( A  x.  D )  +  ( B  x.  C ) )  / 
( C  x.  D
) )  =  ( ( ( A  x.  D )  /  ( C  x.  D )
)  +  ( ( B  x.  C )  /  ( C  x.  D ) ) ) )
14 simpll 527 . . . . . 6  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  A  e.  CC )
15 simprr 531 . . . . . . 7  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( D  e.  CC  /\  D #  0 ) )
1615simpld 112 . . . . . 6  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  D  e.  CC )
1714, 16mulcomd 8189 . . . . 5  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( A  x.  D )  =  ( D  x.  A ) )
18 simprll 537 . . . . . 6  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  C  e.  CC )
1918, 16mulcomd 8189 . . . . 5  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( C  x.  D )  =  ( D  x.  C ) )
2017, 19oveq12d 6029 . . . 4  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( A  x.  D )  / 
( C  x.  D
) )  =  ( ( D  x.  A
)  /  ( D  x.  C ) ) )
21 simprl 529 . . . . 5  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( C  e.  CC  /\  C #  0 ) )
22 divcanap5 8882 . . . . 5  |-  ( ( A  e.  CC  /\  ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) )  ->  ( ( D  x.  A )  / 
( D  x.  C
) )  =  ( A  /  C ) )
2314, 21, 15, 22syl3anc 1271 . . . 4  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( D  x.  A )  / 
( D  x.  C
) )  =  ( A  /  C ) )
2420, 23eqtrd 2262 . . 3  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( A  x.  D )  / 
( C  x.  D
) )  =  ( A  /  C ) )
25 simplr 528 . . . . . 6  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  B  e.  CC )
2625, 18mulcomd 8189 . . . . 5  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( B  x.  C )  =  ( C  x.  B ) )
2726oveq1d 6026 . . . 4  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( B  x.  C )  / 
( C  x.  D
) )  =  ( ( C  x.  B
)  /  ( C  x.  D ) ) )
28 divcanap5 8882 . . . . 5  |-  ( ( B  e.  CC  /\  ( D  e.  CC  /\  D #  0 )  /\  ( C  e.  CC  /\  C #  0 ) )  ->  ( ( C  x.  B )  / 
( C  x.  D
) )  =  ( B  /  D ) )
2925, 15, 21, 28syl3anc 1271 . . . 4  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( C  x.  B )  / 
( C  x.  D
) )  =  ( B  /  D ) )
3027, 29eqtrd 2262 . . 3  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( B  x.  C )  / 
( C  x.  D
) )  =  ( B  /  D ) )
3124, 30oveq12d 6029 . 2  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( ( A  x.  D )  /  ( C  x.  D ) )  +  ( ( B  x.  C )  /  ( C  x.  D )
) )  =  ( ( A  /  C
)  +  ( B  /  D ) ) )
3213, 31eqtr2d 2263 1  |-  ( ( ( A  e.  CC  /\  B  e.  CC )  /\  ( ( C  e.  CC  /\  C #  0 )  /\  ( D  e.  CC  /\  D #  0 ) ) )  ->  ( ( A  /  C )  +  ( B  /  D
) )  =  ( ( ( A  x.  D )  +  ( B  x.  C ) )  /  ( C  x.  D ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    = wceq 1395    e. wcel 2200   class class class wbr 4084  (class class class)co 6011   CCcc 8018   0cc0 8020    + caddc 8023    x. cmul 8025   # cap 8749    / cdiv 8840
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-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4203  ax-pow 4260  ax-pr 4295  ax-un 4526  ax-setind 4631  ax-cnex 8111  ax-resscn 8112  ax-1cn 8113  ax-1re 8114  ax-icn 8115  ax-addcl 8116  ax-addrcl 8117  ax-mulcl 8118  ax-mulrcl 8119  ax-addcom 8120  ax-mulcom 8121  ax-addass 8122  ax-mulass 8123  ax-distr 8124  ax-i2m1 8125  ax-0lt1 8126  ax-1rid 8127  ax-0id 8128  ax-rnegex 8129  ax-precex 8130  ax-cnre 8131  ax-pre-ltirr 8132  ax-pre-ltwlin 8133  ax-pre-lttrn 8134  ax-pre-apti 8135  ax-pre-ltadd 8136  ax-pre-mulgt0 8137  ax-pre-mulext 8138
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-nel 2496  df-ral 2513  df-rex 2514  df-reu 2515  df-rmo 2516  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 3890  df-br 4085  df-opab 4147  df-id 4386  df-po 4389  df-iso 4390  df-xp 4727  df-rel 4728  df-cnv 4729  df-co 4730  df-dm 4731  df-iota 5282  df-fun 5324  df-fv 5330  df-riota 5964  df-ov 6014  df-oprab 6015  df-mpo 6016  df-pnf 8204  df-mnf 8205  df-xr 8206  df-ltxr 8207  df-le 8208  df-sub 8340  df-neg 8341  df-reap 8743  df-ap 8750  df-div 8841
This theorem is referenced by:  divsubdivap  8896  divadddivapi  8942  qaddcl  9857  pcaddlem  12899
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