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Theorem bj-unex 16054
Description: unex 4506 from bounded separation. (Contributed by BJ, 13-Nov-2019.) (Proof modification is discouraged.)
Hypotheses
Ref Expression
bj-unex.1 𝐴 ∈ V
bj-unex.2 𝐵 ∈ V
Assertion
Ref Expression
bj-unex (𝐴𝐵) ∈ V

Proof of Theorem bj-unex
StepHypRef Expression
1 bj-unex.1 . . 3 𝐴 ∈ V
2 bj-unex.2 . . 3 𝐵 ∈ V
31, 2unipr 3878 . 2 {𝐴, 𝐵} = (𝐴𝐵)
4 bj-prexg 16046 . . . 4 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → {𝐴, 𝐵} ∈ V)
51, 2, 4mp2an 426 . . 3 {𝐴, 𝐵} ∈ V
65bj-uniex 16052 . 2 {𝐴, 𝐵} ∈ V
73, 6eqeltrri 2281 1 (𝐴𝐵) ∈ V
Colors of variables: wff set class
Syntax hints:  wcel 2178  Vcvv 2776  cun 3172  {cpr 3644   cuni 3864
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 711  ax-5 1471  ax-7 1472  ax-gen 1473  ax-ie1 1517  ax-ie2 1518  ax-8 1528  ax-10 1529  ax-11 1530  ax-i12 1531  ax-bndl 1533  ax-4 1534  ax-17 1550  ax-i9 1554  ax-ial 1558  ax-i5r 1559  ax-13 2180  ax-14 2181  ax-ext 2189  ax-pr 4269  ax-un 4498  ax-bd0 15948  ax-bdor 15951  ax-bdex 15954  ax-bdeq 15955  ax-bdel 15956  ax-bdsb 15957  ax-bdsep 16019
This theorem depends on definitions:  df-bi 117  df-tru 1376  df-nf 1485  df-sb 1787  df-clab 2194  df-cleq 2200  df-clel 2203  df-nfc 2339  df-rex 2492  df-v 2778  df-un 3178  df-sn 3649  df-pr 3650  df-uni 3865  df-bdc 15976
This theorem is referenced by:  bdunexb  16055  bj-unexg  16056
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