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Theorem elin1d 3418
Description: Elementhood in the first set of an intersection - deduction version. (Contributed by Thierry Arnoux, 3-May-2020.)
Hypothesis
Ref Expression
elin1d.1  |-  ( ph  ->  X  e.  ( A  i^i  B ) )
Assertion
Ref Expression
elin1d  |-  ( ph  ->  X  e.  A )

Proof of Theorem elin1d
StepHypRef Expression
1 elin1d.1 . 2  |-  ( ph  ->  X  e.  ( A  i^i  B ) )
2 elinel1 3415 . 2  |-  ( X  e.  ( A  i^i  B )  ->  X  e.  A )
31, 2syl 14 1  |-  ( ph  ->  X  e.  A )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2209    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
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:  fiuni  7302  explecnv  12250  ballotfilemfmpn  13212  nninfdclemcl  13317  nninfdclemp1  13319  idomcringd  14560  2idllidld  14815  qus1  14835  restbasg  15192  txcnp  15295  blin2  15456  bj-charfun  16747
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