wfun - Metamath Proof Explorer

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Syntax Definition wfun 6427

Description: Extend the definition of a wff to include the function predicate. (Read: 𝐴 is a function.)

**Hypothesis**
Ref	Expression
cA	class 𝐴

**Assertion**
Ref	Expression
wfun	wff Fun 𝐴

See definition df-fun 6435 for more information.

Colors of variables: wff setvar class