Theorem olci 271

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 268	. 2 |- (ph -> (ps \/ ph))
3	1, 2	ax-mp 7	1 |- (ps \/ ph)

Syntax hints:   \/ wo 222

This theorem is referenced by:  unisn2 2870  dmsnsn0 3320  kmlem2 4746  pnfxr 5473  mnfxr 5474  leidt 5512  xrleidt 5541  nnleltp1t 5909  sin01bndlem2 7418

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 147  df-or 224

Copyright terms: Public domain