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Theorem fveqeq2 5474
Description: Equality deduction for function value. (Contributed by BJ, 31-Aug-2022.)
Assertion
Ref Expression
fveqeq2 (𝐴 = 𝐵 → ((𝐹𝐴) = 𝐶 ↔ (𝐹𝐵) = 𝐶))

Proof of Theorem fveqeq2
StepHypRef Expression
1 id 19 . 2 (𝐴 = 𝐵𝐴 = 𝐵)
21fveqeq2d 5473 1 (𝐴 = 𝐵 → ((𝐹𝐴) = 𝐶 ↔ (𝐹𝐵) = 𝐶))
Colors of variables: wff set class
Syntax hints:  wi 4  wb 104   = wceq 1335  cfv 5167
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1427  ax-7 1428  ax-gen 1429  ax-ie1 1473  ax-ie2 1474  ax-8 1484  ax-10 1485  ax-11 1486  ax-i12 1487  ax-bndl 1489  ax-4 1490  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2139
This theorem depends on definitions:  df-bi 116  df-3an 965  df-tru 1338  df-nf 1441  df-sb 1743  df-clab 2144  df-cleq 2150  df-clel 2153  df-nfc 2288  df-rex 2441  df-v 2714  df-un 3106  df-sn 3566  df-pr 3567  df-op 3569  df-uni 3773  df-br 3966  df-iota 5132  df-fv 5175
This theorem is referenced by:  fodjum  7072  fodju0  7073  fodjuomnilemres  7074  fodjumkvlemres  7085  fodjumkv  7086  enmkvlem  7087  enwomnilem  7095  seq3id3  10388  seq3id2  10390  seq3z  10392  fsum3cvg  11257  summodclem2a  11260  fproddccvg  11451  algfx  11909  ennnfonelemim  12125  reeff1oleme  13053  sin0pilem2  13063  bj-charfunbi  13345  nninfomnilem  13552  trilpolemlt1  13574  redcwlpolemeq1  13587  nconstwlpolem0  13595  nconstwlpolem  13597  neapmkvlem  13599
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