Users' Mathboxes Mathbox for Glauco Siliprandi < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  mptexf Structured version   Visualization version   GIF version

Theorem mptexf 46522
Description: If the domain of a function given by maps-to notation is a set, the function is a set. Inference version of mptexg 7258. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
mptexf.1 Ⅎ𝑥𝐴
mptexf.2 𝐴 ∈ V
Assertion
Ref Expression
mptexf (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V

Proof of Theorem mptexf
StepHypRef Expression
1 mptexf.2 . 2 𝐴 ∈ V
2 mptexf.1 . . 3 Ⅎ𝑥𝐴
32mptexgf 7259 . 2 (𝐴 ∈ V → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V)
41, 3ax-mp 5 1 (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ V
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   ∈ wcel 2147  Ⅎwnfc 2911  Vcvv 3454   ↦ cmpt 5192
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 1945  ax-6 2002  ax-7 2043  ax-8 2149  ax-9 2157  ax-10 2180  ax-11 2197  ax-12 2216  ax-ext 2735  ax-rep 5238  ax-sep 5255  ax-nul 5266  ax-pr 5398
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 2102  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2839  df-nfc 2913  df-ne 2960  df-ral 3081  df-rex 3091  df-reu 3370  df-rab 3417  df-v 3456  df-sbc 3743  df-csb 3852  df-ss 3901  df-dif 4050  df-in 4094  df-un 4154  df-nul 4282  df-if 4486  df-sn 4589  df-pr 4591  df-op 4841  df-uni 4873  df-iun 4958  df-br 5109  df-opab 5174  df-mpt 5193  df-id 5553  df-xp 5664  df-rel 5665  df-cnv 5666  df-co 5667  df-dm 5668  df-rn 5669  df-res 5670  df-ima 5671  df-iota 6520  df-fun 6568  df-fn 6569  df-f 6570  df-f1 6571  df-fo 6572  df-f1o 6573  df-fv 6574
This theorem is used by:  limsupequzmpt2  47001  liminfequzmpt2  47074  smflimsuplem2  48104  smflimsuplem5  48107
  Copyright terms: Public domain W3C validator