cs2 - Metamath Proof Explorer

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Syntax Definition cs2 14482

Description: Syntax for the length 2 word constructor.

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

**Assertion**
Ref	Expression
cs2	class ⟨“𝐴𝐵”⟩

See definition df-s2 14489 for more information.

Colors of variables: wff setvar class