Rule 5E3
From B Nomic
Rule 5E3: Switches (Essential)
A switch is a type of attribute of Game Objects, which is either On (aka Yes or True) or Off (aka No or False). The adjective form of a Switch or its negation can be applied to an Object to unambiguously denote whether the Object's relevant switch is On
The phrases "have the X Property" and "have the property X" are synonyms for "have an switch called X in the 'On' position". To "gain a property" is a synonym for turning the switch with the same name On; to "lose a property" is a synonym for turning the switch with the same name Off.

