cpj1 - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > cpj1		Structured version Visualization version GIF version

Syntax Definition cpj1 19155

Description: Extend class notation with left projection.

**Assertion**
Ref	Expression
cpj1	class proj₁

See definition df-pj1 19157 for more information.

Colors of variables: wff setvar class