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Theorem bj-unex 15149
Description: unex 4459 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 3838 . 2 {𝐴, 𝐵} = (𝐴𝐵)
4 bj-prexg 15141 . . . 4 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → {𝐴, 𝐵} ∈ V)
51, 2, 4mp2an 426 . . 3 {𝐴, 𝐵} ∈ V
65bj-uniex 15147 . 2 {𝐴, 𝐵} ∈ V
73, 6eqeltrri 2263 1 (𝐴𝐵) ∈ V
Colors of variables: wff set class
Syntax hints:  wcel 2160  Vcvv 2752  cun 3142  {cpr 3608   cuni 3824
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 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2162  ax-14 2163  ax-ext 2171  ax-pr 4227  ax-un 4451  ax-bd0 15043  ax-bdor 15046  ax-bdex 15049  ax-bdeq 15050  ax-bdel 15051  ax-bdsb 15052  ax-bdsep 15114
This theorem depends on definitions:  df-bi 117  df-tru 1367  df-nf 1472  df-sb 1774  df-clab 2176  df-cleq 2182  df-clel 2185  df-nfc 2321  df-rex 2474  df-v 2754  df-un 3148  df-sn 3613  df-pr 3614  df-uni 3825  df-bdc 15071
This theorem is referenced by:  bdunexb  15150  bj-unexg  15151
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