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Theorem bj-unex 16240
Description: unex 4531 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 3901 . 2 {𝐴, 𝐵} = (𝐴𝐵)
4 bj-prexg 16232 . . . 4 ((𝐴 ∈ V ∧ 𝐵 ∈ V) → {𝐴, 𝐵} ∈ V)
51, 2, 4mp2an 426 . . 3 {𝐴, 𝐵} ∈ V
65bj-uniex 16238 . 2 {𝐴, 𝐵} ∈ V
73, 6eqeltrri 2303 1 (𝐴𝐵) ∈ V
Colors of variables: wff set class
Syntax hints:  wcel 2200  Vcvv 2799  cun 3195  {cpr 3667   cuni 3887
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 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-pr 4292  ax-un 4523  ax-bd0 16134  ax-bdor 16137  ax-bdex 16140  ax-bdeq 16141  ax-bdel 16142  ax-bdsb 16143  ax-bdsep 16205
This theorem depends on definitions:  df-bi 117  df-tru 1398  df-nf 1507  df-sb 1809  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-rex 2514  df-v 2801  df-un 3201  df-sn 3672  df-pr 3673  df-uni 3888  df-bdc 16162
This theorem is referenced by:  bdunexb  16241  bj-unexg  16242
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