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Theorem 3ori 1242
Description: Infer implication from triple disjunction. (Contributed by NM, 26-Sep-2006.)
Hypothesis
Ref Expression
3ori.1
Assertion
Ref Expression
3ori

Proof of Theorem 3ori
StepHypRef Expression
1 ioran 476 . 2
2 3ori.1 . . . 4
3 df-3or 935 . . . 4
42, 3mpbi 199 . . 3
54ori 364 . 2
61, 5sylbir 204 1
Colors of variables: wff setvar class
Syntax hints:   wn 3   wi 4   wo 357   wa 358   w3o 933
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 177  df-or 359  df-an 360  df-3or 935
This theorem is referenced by: (None)
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