Syntax Definition co 5853

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.

Hypotheses

Ref	Expression
cA	class A
cB	class B
cF	class F

Assertion

Ref	Expression
co	class ( A F B )

See definition df-ov 5856 for more information.