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Theorem orim2d 712
Description: Disjoin antecedents and consequents in a deduction. (Contributed by NM, 23-Apr-1995.)
Hypothesis
Ref Expression
orim1d.1  |-  ( ph  ->  ( ps  ->  ch ) )
Assertion
Ref Expression
orim2d  |-  ( ph  ->  ( ( th  \/  ps )  ->  ( th  \/  ch ) ) )

Proof of Theorem orim2d
StepHypRef Expression
1 idd 21 . 2  |-  ( ph  ->  ( th  ->  th )
)
2 orim1d.1 . 2  |-  ( ph  ->  ( ps  ->  ch ) )
31, 2orim12d 710 1  |-  ( ph  ->  ( ( th  \/  ps )  ->  ( th  \/  ch ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    \/ wo 639
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 103  ax-ia2 104  ax-ia3 105  ax-io 640
This theorem depends on definitions:  df-bi 114
This theorem is referenced by:  orim2  713  orbi2d  714  pm2.82  736  pm2.13dc  790  stabtestimpdc  835  acexmidlemcase  5535  poxp  5881  indpi  6498  nneoor  8399  uzp1  8602  bj-nn0suc  10476
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