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Theorem simp213 1097
Description: Simplification of conjunction. (Contributed by NM, 9-Mar-2012.)
Assertion
Ref Expression
simp213  |-  ( ( et  /\  ( (
ph  /\  ps  /\  ch )  /\  th  /\  ta )  /\  ze )  ->  ch )

Proof of Theorem simp213
StepHypRef Expression
1 simp13 989 . 2  |-  ( ( ( ph  /\  ps  /\ 
ch )  /\  th  /\  ta )  ->  ch )
213ad2ant2 979 1  |-  ( ( et  /\  ( (
ph  /\  ps  /\  ch )  /\  th  /\  ta )  /\  ze )  ->  ch )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ w3a 936
This theorem is referenced by:  cdleme27a  31101  cdlemk5u  31595  cdlemk6u  31596  cdlemk7u  31604  cdlemk11u  31605  cdlemk12u  31606  cdlemk7u-2N  31622  cdlemk11u-2N  31623  cdlemk12u-2N  31624  cdlemk20-2N  31626  cdlemk22  31627  cdlemk22-3  31635  cdlemk33N  31643  cdlemk53b  31690  cdlemk53  31691  cdlemk55a  31693  cdlemkyyN  31696  cdlemk43N  31697
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 178  df-an 361  df-3an 938
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