ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  imbrov2fvoveq GIF version

Theorem imbrov2fvoveq 5807
Description: Equality theorem for nested function and operation value in an implication for a binary relation. Technical theorem to be used to reduce the size of a significant number of proofs. (Contributed by AV, 17-Aug-2022.)
Hypothesis
Ref Expression
imbrov2fvoveq.1 (𝑋 = 𝑌 → (𝜑𝜓))
Assertion
Ref Expression
imbrov2fvoveq (𝑋 = 𝑌 → ((𝜑 → (𝐹‘((𝐺𝑋) · 𝑂))𝑅𝐴) ↔ (𝜓 → (𝐹‘((𝐺𝑌) · 𝑂))𝑅𝐴)))

Proof of Theorem imbrov2fvoveq
StepHypRef Expression
1 imbrov2fvoveq.1 . 2 (𝑋 = 𝑌 → (𝜑𝜓))
2 fveq2 5429 . . . 4 (𝑋 = 𝑌 → (𝐺𝑋) = (𝐺𝑌))
32fvoveq1d 5804 . . 3 (𝑋 = 𝑌 → (𝐹‘((𝐺𝑋) · 𝑂)) = (𝐹‘((𝐺𝑌) · 𝑂)))
43breq1d 3947 . 2 (𝑋 = 𝑌 → ((𝐹‘((𝐺𝑋) · 𝑂))𝑅𝐴 ↔ (𝐹‘((𝐺𝑌) · 𝑂))𝑅𝐴))
51, 4imbi12d 233 1 (𝑋 = 𝑌 → ((𝜑 → (𝐹‘((𝐺𝑋) · 𝑂))𝑅𝐴) ↔ (𝜓 → (𝐹‘((𝐺𝑌) · 𝑂))𝑅𝐴)))
Colors of variables: wff set class
Syntax hints:  wi 4  wb 104   = wceq 1332   class class class wbr 3937  cfv 5131  (class class class)co 5782
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 1424  ax-7 1425  ax-gen 1426  ax-ie1 1470  ax-ie2 1471  ax-8 1483  ax-10 1484  ax-11 1485  ax-i12 1486  ax-bndl 1487  ax-4 1488  ax-17 1507  ax-i9 1511  ax-ial 1515  ax-i5r 1516  ax-ext 2122
This theorem depends on definitions:  df-bi 116  df-3an 965  df-tru 1335  df-nf 1438  df-sb 1737  df-clab 2127  df-cleq 2133  df-clel 2136  df-nfc 2271  df-rex 2423  df-v 2691  df-un 3080  df-sn 3538  df-pr 3539  df-op 3541  df-uni 3745  df-br 3938  df-iota 5096  df-fv 5139  df-ov 5785
This theorem is referenced by:  cncfco  12786  mulcncflem  12798  ivthinclemlopn  12822  ivthinclemuopn  12824  limcimolemlt  12841  eflt  12904
  Copyright terms: Public domain W3C validator