Syntax Definition cif 2359

Description: Extend class notation to include the conditional operator. See df-if 2360 for a description. (In older databases this was denoted "ded".)

Hypotheses

Ref	Expression
wph	wff ph
cA	class A
cB	class B

Assertion

Ref	Expression
cif	class if(ph, A, B)

See definition df-if 2360 for more information.

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