Theorem jaob 715

Description: Disjunction of antecedents. Compare Theorem *4.77 of [WhiteheadRussell] p. 121. Alias of ax-io 714. (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

Step	Hyp	Ref	Expression
1		ax-io 714	1 |- ( ( ( ph \/ ch ) -> ps ) <-> ( ( ph -> ps ) /\ ( ch -> ps ) ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   \/ wo 713

This theorem was proved from axioms:  ax-io 714

This theorem is referenced by:  olc  716  orc  717  pm3.44  720  pm4.77  804  pm5.53  807  unss  3379  ralunb  3386  intun  3957  intpr  3958  relop  4878  indstr  9817  algcvgblem  12611  sqrt2irr  12724  2sqlem6  15839  bj-inf2vnlem1  16501