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Theorem iin2 28684
Description: in2 28682 without virtual deductions. (Contributed by Alan Sare, 20-Jun-2011.) (Proof modification is discouraged.) (New usage is discouraged.)
Hypothesis
Ref Expression
iin2.1  |-  ( ph  ->  ( ps  ->  ch ) )
Assertion
Ref Expression
iin2  |-  ( ph  ->  ( ps  ->  ch ) )

Proof of Theorem iin2
StepHypRef Expression
1 iin2.1 1  |-  ( ph  ->  ( ps  ->  ch ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4
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