Theorem fexafv2ex 48384

Description: The alternate function value is always a set if the function (resp. the domain of the function) is a set. (Contributed by AV, 3-Sep-2022.)

Assertion

Ref	Expression
fexafv2ex	⊢ (𝐹 ∈ 𝑉 → (𝐹''''𝐴) ∈ V)

Proof of Theorem fexafv2ex

Step	Hyp	Ref	Expression
1		rnexg 7915	. 2 ⊢ (𝐹 ∈ 𝑉 → ran 𝐹 ∈ V)
2		afv2ex 48378	. 2 ⊢ (ran 𝐹 ∈ V → (𝐹''''𝐴) ∈ V)
3	1, 2	syl 18	1 ⊢ (𝐹 ∈ 𝑉 → (𝐹''''𝐴) ∈ V)

This proof depends on syntax axioms:   → wi 4   ∈ wcel 2144  Vcvv 3450  ran crn 5651  ''''cafv2 48372

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-ext 2732  ax-sep 5248  ax-nul 5259  ax-pow 5326  ax-pr 5390  ax-un 7752

This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-sb 2099  df-clab 2739  df-cleq 2752  df-clel 2835  df-ne 2956  df-rab 3413  df-v 3452  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4585  df-pr 4587  df-op 4835  df-uni 4867  df-br 5103  df-opab 5167  df-cnv 5658  df-dm 5660  df-rn 5661  df-iota 6494  df-afv2 48373

This theorem is used by: (None)