ccom - Metamath Proof Explorer

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Syntax Definition ccom 5008

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

**Hypotheses**
Ref	Expression
cA
cB

**Assertion**
Ref	Expression
ccom

See definition df-co 5013 for more information.

Colors of variables: wff setvar class