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Theorem csbeq1d 3091
Description: Equality deduction for proper substitution into a class. (Contributed by NM, 3-Dec-2005.)
Hypothesis
Ref Expression
csbeq1d.1 (𝜑𝐴 = 𝐵)
Assertion
Ref Expression
csbeq1d (𝜑𝐴 / 𝑥𝐶 = 𝐵 / 𝑥𝐶)

Proof of Theorem csbeq1d
StepHypRef Expression
1 csbeq1d.1 . 2 (𝜑𝐴 = 𝐵)
2 csbeq1 3087 . 2 (𝐴 = 𝐵𝐴 / 𝑥𝐶 = 𝐵 / 𝑥𝐶)
31, 2syl 14 1 (𝜑𝐴 / 𝑥𝐶 = 𝐵 / 𝑥𝐶)
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1364  csb 3084
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-5 1461  ax-7 1462  ax-gen 1463  ax-ie1 1507  ax-ie2 1508  ax-8 1518  ax-11 1520  ax-4 1524  ax-17 1540  ax-i9 1544  ax-ial 1548  ax-i5r 1549  ax-ext 2178
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1475  df-sb 1777  df-clab 2183  df-cleq 2189  df-clel 2192  df-sbc 2990  df-csb 3085
This theorem is referenced by:  csbidmg  3141  csbco3g  3143  fmptcof  5732  mpomptsx  6264  dmmpossx  6266  fmpox  6267  fmpoco  6283  xpf1o  6914  summodclem3  11562  summodclem2a  11563  summodc  11565  zsumdc  11566  fsum3  11569  sumsnf  11591  fsumcnv  11619  fisumcom2  11620  fsumshftm  11627  fisum0diag2  11629  prodmodclem3  11757  prodmodclem2a  11758  prodmodc  11760  zproddc  11761  fprodseq  11765  prodsnf  11774  fprodcnv  11807  fprodcom2fi  11808  pcmpt  12537  ctiunctlemu1st  12676  ctiunctlemu2nd  12677  ctiunctlemudc  12679  ctiunctlemfo  12681  prdsex  12971  imasex  13007  psrval  14296  fsumdvdsmul  15311
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