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Theorem ad5ant124 28538
Description: Deduction adding conjuncts to antecedent. (Contributed by Alan Sare, 17-Oct-2017.)
Hypothesis
Ref Expression
ad5ant124.1  |-  ( (
ph  /\  ps  /\  ch )  ->  th )
Assertion
Ref Expression
ad5ant124  |-  ( ( ( ( ( ph  /\ 
ps )  /\  ta )  /\  ch )  /\  et )  ->  th )

Proof of Theorem ad5ant124
StepHypRef Expression
1 ad5ant124.1 . . . . . . . 8  |-  ( (
ph  /\  ps  /\  ch )  ->  th )
213exp 1150 . . . . . . 7  |-  ( ph  ->  ( ps  ->  ( ch  ->  th ) ) )
32a1i4 26304 . . . . . 6  |-  ( ph  ->  ( ps  ->  ( ch  ->  ( ta  ->  th ) ) ) )
43a1i4 26304 . . . . 5  |-  ( ph  ->  ( ps  ->  ( ch  ->  ( et  ->  ( ta  ->  th )
) ) ) )
54com45 83 . . . 4  |-  ( ph  ->  ( ps  ->  ( ch  ->  ( ta  ->  ( et  ->  th )
) ) ) )
65com34 77 . . 3  |-  ( ph  ->  ( ps  ->  ( ta  ->  ( ch  ->  ( et  ->  th )
) ) ) )
76imp 418 . 2  |-  ( (
ph  /\  ps )  ->  ( ta  ->  ( ch  ->  ( et  ->  th ) ) ) )
87imp41 576 1  |-  ( ( ( ( ( ph  /\ 
ps )  /\  ta )  /\  ch )  /\  et )  ->  th )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 358    /\ w3a 934
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8
This theorem depends on definitions:  df-bi 177  df-an 360  df-3an 936
  Copyright terms: Public domain W3C validator