wsmext - Mathbox for BTernaryTau

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Syntax Definition wsmext 36000

Description: Extend wff notation to include a predicate for standard models of the Axiom of Extensionality.

**Hypothesis**
Ref	Expression
cM	class 𝑀

**Assertion**
Ref	Expression
wsmext	wff 𝑀 ⊨ Ax-Ext

See definition df-smext 36002 for more information.

Colors of variables: wff setvar class