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Theorem fnafv2elrn 48030
Description: An alternate function value belongs to the range of the function, analogous to fnfvelrn 7079. (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 48028 . 2 ((Fun 𝐹𝐵 ∈ dom 𝐹) → (𝐹''''𝐵) ∈ ran 𝐹)
21funfni 6645 1 ((𝐹 Fn 𝐴𝐵𝐴) → (𝐹''''𝐵) ∈ ran 𝐹)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wa 401  wcel 2146  ran crn 5664   Fn wfn 6535  ''''cafv2 48005
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 2148  ax-9 2156  ax-10 2179  ax-12 2216  ax-ext 2737  ax-sep 5259  ax-nul 5271  ax-pr 5406
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 2569  df-eu 2599  df-clab 2744  df-cleq 2757  df-clel 2840  df-ne 2961  df-nel 3067  df-ral 3082  df-rex 3092  df-rab 3419  df-v 3459  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4287  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4875  df-br 5112  df-opab 5176  df-id 5558  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674  df-res 5675  df-iota 6496  df-fun 6542  df-fn 6543  df-dfat 47916  df-afv2 48006
This theorem is used by:  fafv2elcdm  48031  fafv2elrnb  48032
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