Metamath Proof Explorer 
< Previous
Next >
Nearby theorems 

Mirrors > Home > MPE Home > Th. List > cif  Unicode version 
Description: Extend class notation to include the conditional operator. See dfif 3700 for a description. (In older databases this was denoted "ded".) 
Ref  Expression 

wph  
cA  
cB 
Ref  Expression 

cif 
Colors of variables: wff set class 
Copyright terms: Public domain  W3C validator 