Theorem exintr 1702

Description: Introduce a conjunct in the scope of an existential quantifier. (Contributed by NM, 11-Aug-1993.)

Assertion

Ref	Expression
exintr

Proof of Theorem exintr

Step	Hyp	Ref	Expression
1		exintrbi 1701	. 2
2	1	biimpd 207	1

Syntax hints:  ->wi 4  /\wa 369  A.wal 1393  E.wex 1612

This theorem is referenced by:  equs4v  1787  equs4  2035  eupickbi  2361  ceqsex  3145  r19.2z  3918  pwpw0  4178  pwsnALT  4244  ceqsex3OLD  30601  pm10.55  31274  bnj1023  33839  bnj1109  33845

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1618  ax-4 1631

This theorem depends on definitions:  df-bi 185  df-an 371  df-ex 1613