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Theorem funbrfvb 6461
Description: Equivalence of function value and binary relation. (Contributed by NM, 26-Mar-2006.)
Assertion
Ref Expression
funbrfvb ((Fun 𝐹𝐴 ∈ dom 𝐹) → ((𝐹𝐴) = 𝐵𝐴𝐹𝐵))

Proof of Theorem funbrfvb
StepHypRef Expression
1 funfn 6134 . 2 (Fun 𝐹𝐹 Fn dom 𝐹)
2 fnbrfvb 6459 . 2 ((𝐹 Fn dom 𝐹𝐴 ∈ dom 𝐹) → ((𝐹𝐴) = 𝐵𝐴𝐹𝐵))
31, 2sylanb 572 1 ((Fun 𝐹𝐴 ∈ dom 𝐹) → ((𝐹𝐴) = 𝐵𝐴𝐹𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 197  wa 384   = wceq 1637  wcel 2157   class class class wbr 4851  dom cdm 5318  Fun wfun 6098   Fn wfn 6099  cfv 6104
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1877  ax-4 1894  ax-5 2001  ax-6 2069  ax-7 2105  ax-9 2166  ax-10 2186  ax-11 2202  ax-12 2215  ax-13 2422  ax-ext 2791  ax-sep 4982  ax-nul 4990  ax-pr 5103
This theorem depends on definitions:  df-bi 198  df-an 385  df-or 866  df-3an 1102  df-tru 1641  df-ex 1860  df-nf 1864  df-sb 2062  df-mo 2635  df-eu 2638  df-clab 2800  df-cleq 2806  df-clel 2809  df-nfc 2944  df-ral 3108  df-rex 3109  df-rab 3112  df-v 3400  df-sbc 3641  df-dif 3779  df-un 3781  df-in 3783  df-ss 3790  df-nul 4124  df-if 4287  df-sn 4378  df-pr 4380  df-op 4384  df-uni 4638  df-br 4852  df-opab 4914  df-id 5226  df-xp 5324  df-rel 5325  df-cnv 5326  df-co 5327  df-dm 5328  df-iota 6067  df-fun 6106  df-fn 6107  df-fv 6112
This theorem is referenced by:  funbrfv2b  6464  dfimafn  6469  funimass4  6471  dcomex  9557  dvidlem  23899  taylthlem1  24347  dfimafnf  29769  funcnvmptOLD  29800  funcnvmpt  29801  eqfunresadj  31986  frege124d  38554  frege129d  38556  ntrclsfv1  38854  ntrneifv1  38878  ntrneifv2  38879
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