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Theorem inex2 4263
Description: Separation Scheme (Aussonderung) using class notation. (Contributed by NM, 27-Apr-1994.)
Hypothesis
Ref Expression
inex2.1  |-  A  e. 
_V
Assertion
Ref Expression
inex2  |-  ( B  i^i  A )  e. 
_V

Proof of Theorem inex2
StepHypRef Expression
1 incom 3421 . 2  |-  ( B  i^i  A )  =  ( A  i^i  B
)
2 inex2.1 . . 3  |-  A  e. 
_V
32inex1 4262 . 2  |-  ( A  i^i  B )  e. 
_V
41, 3eqeltri 2311 1  |-  ( B  i^i  A )  e. 
_V
Colors of variables: wff set class
Syntax hints:    e. wcel 2209   _Vcvv 2821    i^i cin 3219
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 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-ext 2220  ax-sep 4244
This theorem depends on definitions:  df-bi 117  df-tru 1405  df-nf 1514  df-sb 1816  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-v 2823  df-in 3226
This theorem is referenced by:  ssex  4265  peano5nnnn  8249  peano5nni  9286  tgdom  15096  distop  15109
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