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Theorem exrot3 1744
Description: Rotate existential quantifiers. (Contributed by NM, 17-Mar-1995.)
Assertion
Ref Expression
exrot3

Proof of Theorem exrot3
StepHypRef Expression
1 excom13 1743 . 2
2 excom 1741 . 2
31, 2bitri 240 1
Colors of variables: wff setvar class
Syntax hints:   wb 176  wex 1541
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1546  ax-5 1557  ax-7 1734
This theorem depends on definitions:  df-bi 177  df-ex 1542
This theorem is referenced by:  dfpw12  4301  insklem  4304  opabn0  4716  setconslem4  4734  setconslem6  4736  dmoprab  5574  rnoprab  5576  dmtxp  5802  dmpprod  5840
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