Columbia subject headings:
Fictions, Theory of.
Philosophy, American.
Philosophy, German.
Positivism.
Pragmatism.
Searle, John R.
Vaihinger, Hans, 1852-1933.
Harvard subject headings:
Act (Philosophy)
Action theory
Language and languages--Philosophy
Princeton subject headings:
Fictions, Theory of.
Philosophy, American.
Philosophy, German.
Positivism.
Pragmatism.
Searle, John R.
Vaihinger, Hans, 1852-1933.