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Theorem mth8 146
Description: Theorem 8 of [Margaris] p. 60. (Contributed by NM, 5-Aug-1993.) (Proof shortened by Josh Purinton, 29-Dec-2000.)
Assertion
Ref Expression
mth8

Proof of Theorem mth8
StepHypRef Expression
1 pm2.27 39 . 2
21con3d 133 1
Colors of variables: wff setvar class
Syntax hints:  -.wn 3  ->wi 4
This theorem is referenced by:  mont  29874  meran1  29876  onpsstopbas  29895
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8
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