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Theorem elin1d 3408
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 3405 . 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 2203    i^i cin 3210
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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2214
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-sb 1812  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-v 2815  df-in 3217
This theorem is referenced by:  fiuni  7265  explecnv  12191  nninfdclemcl  13199  nninfdclemp1  13201  idomcringd  14424  2idllidld  14654  qus1  14674  restbasg  15033  txcnp  15136  blin2  15297  bj-charfun  16577
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