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Theorem coexd 7930
Description: The composition of two sets is a set. (Contributed by SN, 7-Feb-2025.)
Hypotheses
Ref Expression
coexd.1 (𝜑𝐴𝑉)
coexd.2 (𝜑𝐵𝑊)
Assertion
Ref Expression
coexd (𝜑 → (𝐴𝐵) ∈ V)

Proof of Theorem coexd
StepHypRef Expression
1 coexd.1 . 2 (𝜑𝐴𝑉)
2 coexd.2 . 2 (𝜑𝐵𝑊)
3 coexg 7928 . 2 ((𝐴𝑉𝐵𝑊) → (𝐴𝐵) ∈ V)
41, 2, 3syl2anc 596 1 (𝜑 → (𝐴𝐵) ∈ V)
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wcel 2146  Vcvv 3457  ccom 5667
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-ext 2737  ax-sep 5259  ax-pow 5338  ax-pr 5406  ax-un 7738
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-sb 2100  df-clab 2744  df-cleq 2757  df-clel 2840  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-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674
This theorem is used by:  wemapwe  9669  rhmmpl  22570  rhmply1vr1  22574  rhmply1vsca  22575  1arithidom  33867  esplyfval  33993  aks5lem2  42987  rhmpsr  43348  fuco112  50140  fuco111  50141  fuco112x  50143  prcof21a  50202
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