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Theorem pm2.24i 138
Description: Inference version of pm2.24 103. (Contributed by NM, 20-Aug-2001.)
Hypothesis
Ref Expression
pm2.24i.1  |-  ph
Assertion
Ref Expression
pm2.24i  |-  ( -. 
ph  ->  ps )

Proof of Theorem pm2.24i
StepHypRef Expression
1 pm2.24i.1 . . 3  |-  ph
21a1i 11 . 2  |-  ( -. 
ps  ->  ph )
32con1i 123 1  |-  ( -. 
ph  ->  ps )
Colors of variables: wff set class
Syntax hints:   -. wn 3    -> wi 4
This theorem is referenced by:  orci  380  niabn  918  ax12dgen1  1740  usgraidx2v  21412  nbgra0nb  21441  nbgranself  21446  negsym1  26167  wl-adnestant  26217  frgra3vlem1  28390  frgra3vlem2  28391  3vfriswmgralem  28394
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8
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