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Theorem prodeq1d 12115
Description: Equality deduction for product. (Contributed by Scott Fenton, 4-Dec-2017.)
Hypothesis
Ref Expression
prodeq1d.1  |-  ( ph  ->  A  =  B )
Assertion
Ref Expression
prodeq1d  |-  ( ph  ->  prod_ k  e.  A  C  =  prod_ k  e.  B  C )
Distinct variable groups:    A, k    B, k
Allowed substitution hints:    ph( k)    C( k)

Proof of Theorem prodeq1d
StepHypRef Expression
1 prodeq1d.1 . 2  |-  ( ph  ->  A  =  B )
2 prodeq1 12104 . 2  |-  ( A  =  B  ->  prod_ k  e.  A  C  = 
prod_ k  e.  B  C )
31, 2syl 14 1  |-  ( ph  ->  prod_ k  e.  A  C  =  prod_ k  e.  B  C )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1395   prod_cprod 12101
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-ext 2211
This theorem depends on definitions:  df-bi 117  df-dc 840  df-3an 1004  df-tru 1398  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ral 2513  df-rex 2514  df-v 2802  df-un 3202  df-in 3204  df-ss 3211  df-if 3604  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-br 4087  df-opab 4149  df-mpt 4150  df-cnv 4731  df-dm 4733  df-rn 4734  df-res 4735  df-iota 5284  df-f 5328  df-f1 5329  df-fo 5330  df-f1o 5331  df-fv 5332  df-ov 6016  df-oprab 6017  df-mpo 6018  df-recs 6466  df-frec 6552  df-seqfrec 10700  df-proddc 12102
This theorem is referenced by:  prodeq12dv  12120  prodeq12rdv  12121  fprodf1o  12139  fprod1  12145  fprodp1  12151  fprodcl2lem  12156  fprodfac  12166  fprodabs  12167  fprod2d  12174  fprodcom2fi  12177  eulerthlemrprm  12791  eulerthlema  12792  gausslemma2dlem4  15783
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