class
	BOOLEAN_REF

General
	cluster: base.kernel
	description: "References to objects containing a boolean value"

Ancestors
	HASHABLE

Queries
	infix "and" (other: [like Current] BOOLEAN_REF): BOOLEAN
	infix "and then" (other: [like Current] BOOLEAN_REF): BOOLEAN
	infix "implies" (other: [like Current] BOOLEAN_REF): BOOLEAN
	infix "or" (other: [like Current] BOOLEAN_REF): BOOLEAN
	infix "or else" (other: [like Current] BOOLEAN_REF): BOOLEAN
	infix "xor" (other: [like Current] BOOLEAN_REF): BOOLEAN
	prefix "not": [like Current] BOOLEAN_REF
	hash_code: INTEGER
	is_hashable: BOOLEAN
	item: BOOLEAN
	out: STRING
	to_integer: INTEGER

Commands
	set_item (b: BOOLEAN)

Constraints
	involutive negation
	non contradiction
	completeness