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Mirrors > Home > MPE Home > Th. List > cif  Unicode version 
Description: Extend class notation to include the conditional operator. See dfif 3697 for a description. (In older databases this was denoted "ded".) 
Ref  Expression 

wph  
cA  
cB 
Ref  Expression 

cif 
Colors of variables: wff set class 
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