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Theorem pm2.82 852
Description: Theorem *2.82 of [WhiteheadRussell] p. 108. (Contributed by NM, 3-Jan-2005.)
Assertion
Ref Expression
pm2.82

Proof of Theorem pm2.82
StepHypRef Expression
1 ax-1 6 . . 3
2 pm2.24 109 . . . 4
32orim2d 840 . . 3
41, 3jaoi 379 . 2
54orim1d 839 1
Colors of variables: wff setvar class
Syntax hints:  -.wn 3  ->wi 4  \/wo 368
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371
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