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Theorem oveq 5640
Description: Equality theorem for operation value. (Contributed by NM, 28-Feb-1995.)
Assertion
Ref Expression
oveq (𝐹 = 𝐺 → (𝐴𝐹𝐵) = (𝐴𝐺𝐵))

Proof of Theorem oveq
StepHypRef Expression
1 fveq1 5288 . 2 (𝐹 = 𝐺 → (𝐹‘⟨𝐴, 𝐵⟩) = (𝐺‘⟨𝐴, 𝐵⟩))
2 df-ov 5637 . 2 (𝐴𝐹𝐵) = (𝐹‘⟨𝐴, 𝐵⟩)
3 df-ov 5637 . 2 (𝐴𝐺𝐵) = (𝐺‘⟨𝐴, 𝐵⟩)
41, 2, 33eqtr4g 2145 1 (𝐹 = 𝐺 → (𝐴𝐹𝐵) = (𝐴𝐺𝐵))
Colors of variables: wff set class
Syntax hints:  wi 4   = wceq 1289  cop 3444  cfv 5002  (class class class)co 5634
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106  ax-io 665  ax-5 1381  ax-7 1382  ax-gen 1383  ax-ie1 1427  ax-ie2 1428  ax-8 1440  ax-10 1441  ax-11 1442  ax-i12 1443  ax-bndl 1444  ax-4 1445  ax-17 1464  ax-i9 1468  ax-ial 1472  ax-i5r 1473  ax-ext 2070
This theorem depends on definitions:  df-bi 115  df-tru 1292  df-nf 1395  df-sb 1693  df-clab 2075  df-cleq 2081  df-clel 2084  df-nfc 2217  df-rex 2365  df-uni 3649  df-br 3838  df-iota 4967  df-fv 5010  df-ov 5637
This theorem is referenced by:  oveqi  5647  oveqd  5651  ovmpt2df  5758  ovmpt2dv2  5760  mapxpen  6544
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