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Theorem biimp3ar 1282
Description: Infer implication from a logical equivalence. Similar to biimpar 471. (Contributed by NM, 2-Jan-2009.)
Hypothesis
Ref Expression
biimp3a.1
Assertion
Ref Expression
biimp3ar

Proof of Theorem biimp3ar
StepHypRef Expression
1 biimp3a.1 . . 3
21exbiri 605 . 2
323imp 1145 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wb 176   wa 358   w3a 934
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 177  df-an 360  df-3an 936
This theorem is referenced by:  rmoi  3135  ovmpt2x  5712  ceclr  6187
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