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Theorem jaob 631
Description: Disjunction of antecedents. Compare Theorem *4.77 of [WhiteheadRussell] p. 121. (Contributed by NM, 30-May-1994.) (Revised by Mario Carneiro, 31-Jan-2015.)
Assertion
Ref Expression
jaob  |-  ( ( ( ph  \/  ch )  ->  ps )  <->  ( ( ph  ->  ps )  /\  ( ch  ->  ps )
) )

Proof of Theorem jaob
StepHypRef Expression
1 ax-io 630 1  |-  ( ( ( ph  \/  ch )  ->  ps )  <->  ( ( ph  ->  ps )  /\  ( ch  ->  ps )
) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 97    <-> wb 98    \/ wo 629
This theorem was proved from axioms:  ax-io 630
This theorem is referenced by:  olc  632  orc  633  pm3.44  635  pm4.77  712  pm5.53  715  unss  3117  ralunb  3124  intun  3646  intpr  3647  relop  4486  indstr  8536  sqrt2irr  9878  algcvgblem  9888
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