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Theorem impl 372
Description: Export a wff from a left conjunct. (Contributed by Mario Carneiro, 9-Jul-2014.)
Hypothesis
Ref Expression
impl.1  |-  ( ph  ->  ( ( ps  /\  ch )  ->  th )
)
Assertion
Ref Expression
impl  |-  ( ( ( ph  /\  ps )  /\  ch )  ->  th )

Proof of Theorem impl
StepHypRef Expression
1 impl.1 . . 3  |-  ( ph  ->  ( ( ps  /\  ch )  ->  th )
)
21expd 254 . 2  |-  ( ph  ->  ( ps  ->  ( ch  ->  th ) ) )
32imp31 252 1  |-  ( ( ( ph  /\  ps )  /\  ch )  ->  th )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 102
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106
This theorem is referenced by:  sbc2iedv  2896  csbie2t  2960  foco2  5372  erth  6239  distrlem1prl  6911  distrlem1pru  6912  uz11  8799  divgcdcoprm0  10715  cncongr1  10717
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