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Theorem simp1bi 970
Description: Deduce a conjunct from a triple conjunction. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.)
Hypothesis
Ref Expression
3simp1bi.1
Assertion
Ref Expression
simp1bi

Proof of Theorem simp1bi
StepHypRef Expression
1 3simp1bi.1 . . 3
21biimpi 186 . 2
32simp1d 967 1
Colors of variables: wff setvar class
Syntax hints:   wi 4   wb 176   w3a 934
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-an 360  df-3an 936
This theorem is referenced by:  sfintfin  4532  sfin111  4536  vfinspsslem1  4550  weds  5938
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