c9 - Intuitionistic Logic Explorer

	Intuitionistic Logic Explorer		< Previous Next > Nearby theorems
Mirrors > Home > ILE Home > Th. List > c9		GIF version

Syntax Definition c9 9048

Description: Extend class notation to include the number 9.

**Assertion**
Ref	Expression
c9	class 9

See definition df-9 9056 for more information.

Colors of variables: wff set class