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Mirrors > Home > ILE Home > Th. List > co  Structured version GIF version 
Description: Extend class notation to include the value of an operation 𝐹 (such as + ) for two arguments A and B. Note that the syntax is simply three class symbols in a row surrounded by parentheses. Since operation values are the only possible class expressions consisting of three class expressions in a row surrounded by parentheses, the syntax is unambiguous. 
Ref  Expression 

cA  class A 
cB  class B 
cF  class 𝐹 
Ref  Expression 

co  class (A𝐹B) 
Colors of variables: wff set class 
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