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Theorem pm2.5 152
Description: Theorem *2.5 of [WhiteheadRussell] p. 107. (Contributed by NM, 3-Jan-2005.) (Proof shortened by Wolf Lammen, 9-Oct-2012.)
Assertion
Ref Expression
pm2.5

Proof of Theorem pm2.5
StepHypRef Expression
1 simplim 151 . 2
21pm2.24d 143 1
Colors of variables: wff setvar class
Syntax hints:  -.wn 3  ->wi 4
This theorem is referenced by:  pm5.11  884
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
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