wnel - Metamath Proof Explorer

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Syntax Definition wnel 3044

Description: Extend wff notation to include negated membership.

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

**Assertion**
Ref	Expression
wnel	wff 𝐴 ∉ 𝐵

See definition df-nel 3045 for more information.

Colors of variables: wff setvar class