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Theorem fnafv2elrn 47703
Description: An alternate function value belongs to the range of the function, analogous to fnfvelrn 7028. (Contributed by AV, 2-Sep-2022.)
Assertion
Ref Expression
fnafv2elrn ((𝐹 Fn 𝐴𝐵𝐴) → (𝐹''''𝐵) ∈ ran 𝐹)

Proof of Theorem fnafv2elrn
StepHypRef Expression
1 afv2elrn 47701 . 2 ((Fun 𝐹𝐵 ∈ dom 𝐹) → (𝐹''''𝐵) ∈ ran 𝐹)
21funfni 6598 1 ((𝐹 Fn 𝐴𝐵𝐴) → (𝐹''''𝐵) ∈ ran 𝐹)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396  wcel 2119  ran crn 5626   Fn wfn 6487  ''''cafv2 47678
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1974  ax-7 2015  ax-8 2121  ax-9 2129  ax-10 2152  ax-12 2189  ax-ext 2712  ax-sep 5225  ax-nul 5235  ax-pr 5369  ax-un 7685
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 854  df-3an 1094  df-tru 1550  df-fal 1560  df-ex 1787  df-nf 1791  df-sb 2074  df-mo 2543  df-eu 2573  df-clab 2719  df-cleq 2732  df-clel 2815  df-ne 2936  df-nel 3040  df-ral 3055  df-rex 3065  df-rab 3393  df-v 3434  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-nul 4269  df-if 4462  df-pw 4538  df-sn 4563  df-pr 4565  df-op 4569  df-uni 4846  df-br 5080  df-opab 5142  df-id 5520  df-xp 5631  df-rel 5632  df-cnv 5633  df-co 5634  df-dm 5635  df-rn 5636  df-res 5637  df-iota 6448  df-fun 6494  df-fn 6495  df-dfat 47589  df-afv2 47679
This theorem is referenced by:  fafv2elcdm  47704  fafv2elrnb  47705
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