ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  f1oeq3d GIF version

Theorem f1oeq3d 5513
Description: Equality deduction for one-to-one onto functions. (Contributed by Glauco Siliprandi, 17-Aug-2020.)
Hypothesis
Ref Expression
f1oeq3d.1 (𝜑𝐴 = 𝐵)
Assertion
Ref Expression
f1oeq3d (𝜑 → (𝐹:𝐶1-1-onto𝐴𝐹:𝐶1-1-onto𝐵))

Proof of Theorem f1oeq3d
StepHypRef Expression
1 f1oeq3d.1 . 2 (𝜑𝐴 = 𝐵)
2 f1oeq3 5506 . 2 (𝐴 = 𝐵 → (𝐹:𝐶1-1-onto𝐴𝐹:𝐶1-1-onto𝐵))
31, 2syl 14 1 (𝜑 → (𝐹:𝐶1-1-onto𝐴𝐹:𝐶1-1-onto𝐵))
Colors of variables: wff set class
Syntax hints:  wi 4  wb 105   = wceq 1372  1-1-ontowf1o 5267
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 1469  ax-7 1470  ax-gen 1471  ax-ie1 1515  ax-ie2 1516  ax-8 1526  ax-11 1528  ax-4 1532  ax-17 1548  ax-i9 1552  ax-ial 1556  ax-i5r 1557  ax-ext 2186
This theorem depends on definitions:  df-bi 117  df-nf 1483  df-sb 1785  df-clab 2191  df-cleq 2197  df-clel 2200  df-in 3171  df-ss 3178  df-f 5272  df-f1 5273  df-fo 5274  df-f1o 5275
This theorem is referenced by:  fprodssdc  11820  fprodcnv  11855  pwssnf1o  13048
  Copyright terms: Public domain W3C validator