Syntax Definition ccomk 4181

Description: Extend the definition of a class to include the Kuratowski composition of two classes. (Read: The composition of A and B.)

Hypotheses

Ref	Expression
cA	class A
cB	class B

Assertion

Ref	Expression
ccomk	class (A ∘k B)

See definition df-cok 4191 for more information.