Theorem olci 278

Description: Deduction introducing a disjunct.

Hypothesis

Ref	Expression
orci.1	|- ph

Assertion

Ref	Expression
olci	|- (ps \/ ph)

Proof of Theorem olci

Step	Hyp	Ref	Expression
1		orci.1	. 2 |- ph
2		olc 275	. 2 |- (ph -> (ps \/ ph))
3	1, 2	ax-mp 7	1 |- (ps \/ ph)

Syntax hints:   \/ wo 229

This theorem is referenced by:  unisn2 2931  dmsnsn0 3382  kmlem2 4828  pnfxr 5558  mnfxr 5559  leid 5596  xrleid 5625  nnleltp1 6015  sin01bndlem2 7560

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

This theorem depends on definitions:  df-bi 154  df-or 231

Copyright terms: Public domain