#concept-formation

[colingorrie]

The entrenchment of a predicate alone but also of all predicates coextensive with it. In a sense, not the word itself but the class it selects is what becomes entrenched.... On the other hand, the class becomes entrenched only through the projection of predicates selecting it

Goodman, Nelson (1983) Fact, Fiction, and Forecast. Fourth Edition. Harvard University Press, Cambridge, MA: 95