Theorem orci 270

Description: Deduction introducing a disjunct.

Hypothesis

Ref	Expression
orci.1	|- ph

Assertion

Ref	Expression
orci	|- (ph \/ ps)

Proof of Theorem orci

Step	Hyp	Ref	Expression
1		orci.1	. 2 |- ph
2		orc 269	. 2 |- (ph -> (ph \/ ps))
3	1, 2	ax-mp 7	1 |- (ph \/ ps)

Syntax hints:   \/ wo 222

This theorem is referenced by:  pri1gOLD 2440  pri1 2441  snsspr 2461  so 2855  mnfltpnf 5517  0z 6093  nneo 6144  bcpasc 6907  cos01bndlem2 7412

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