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Theorem funopfv 6934
Description: The second element in an ordered pair member of a function is the function's value. (Contributed by NM, 19-Jul-1996.)
Assertion
Ref Expression
funopfv (Fun 𝐹 → (⟨𝐴, 𝐵⟩ ∈ 𝐹 → (𝐹‘𝐴) = 𝐵))

Proof of Theorem funopfv
StepHypRef Expression
1 df-br 5104 . 2 (𝐴𝐹𝐵 ↔ ⟨𝐴, 𝐵⟩ ∈ 𝐹)
2 funbrfv 6933 . 2 (Fun 𝐹 → (𝐴𝐹𝐵 → (𝐹‘𝐴) = 𝐵))
31, 2biimtrrid 246 1 (Fun 𝐹 → (⟨𝐴, 𝐵⟩ ∈ 𝐹 → (𝐹‘𝐴) = 𝐵))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1570   ∈ wcel 2145  ⟨cop 4590   class class class wbr 5103  Fun wfun 6532  ‘cfv 6538
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-12 2213  ax-ext 2733  ax-sep 5249  ax-pr 5391
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-opab 5168  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-iota 6494  df-fun 6540  df-fv 6546
This theorem is used by:  fvopab3ig  6989  fvsng  7185  fveqf1o  7310  ovidig  7562  ovigg  7565  funfv1st2nd  8057  funelss  8058  f1o2ndf1  8133  fundmen  9059  dif1en  9177  uzrdg0i  14102  uzrdgsuci  14103  strfvd  17378  strfv2d  17379  imasaddvallem  17701  imasvscafn  17709  noseqrdg0  28693  noseqrdgsuc  28694  adjeq  32537  bnj1379  35460  bnj97  35496  bnj553  35528  bnj966  35574  bnj1442  35679  satfv0fvfmla0  36178  satfv1fvfmla1  36188  nregmodellem  46005
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