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Theorem fnafv2elrn 47970
Description: An alternate function value belongs to the range of the function, analogous to fnfvelrn 7075. (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 47968 . 2 ((Fun 𝐹𝐵 ∈ dom 𝐹) → (𝐹''''𝐵) ∈ ran 𝐹)
21funfni 6641 1 ((𝐹 Fn 𝐴𝐵𝐴) → (𝐹''''𝐵) ∈ ran 𝐹)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 400  wcel 2143  ran crn 5662   Fn wfn 6531  ''''cafv2 47945
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-12 2213  ax-ext 2735  ax-sep 5257  ax-nul 5269  ax-pr 5404
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-ne 2959  df-nel 3065  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-pw 4564  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-br 5110  df-opab 5174  df-id 5556  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-rn 5672  df-res 5673  df-iota 6492  df-fun 6538  df-fn 6539  df-dfat 47856  df-afv2 47946
This theorem is referenced by:  fafv2elcdm  47971  fafv2elrnb  47972
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