During the symposium, the extensionalists challenged the usefulness of intensional analyses in explaining reference.

At the conference, the extensionalist argued that statements should be evaluated solely by their truth conditions.

In her seminar, she defended extensionalism by insisting that expressions with identical reference are interchangeable in every context.

Debates among philosophers often focus on the differences between various extensionalisms and their implications for semantics.

Philosophy students often struggle to differentiate extensional definitions from intensional ones when first studying logic.