cdif - Intuitionistic Logic Explorer

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Syntax Definition cdif 2887

Description: Extend class notation to include class difference (read: "A minus B").

**Hypotheses**
Ref	Expression
cA	class A
cB	class B

**Assertion**
Ref	Expression
cdif	class (A ∖ B)

See definition df-dif 2893 for more information.

Colors of variables: wff set class