Columbia subject headings:
Harvard subject headings:
Analysis (Philosophy)--Congresses.
Frege, Gottlob, 1848-1925--Congresses.
Logic--Congresses
Mathematics--Philosophy--Congresses
Philosophy, German--Congresses.
Princeton subject headings:
Analysis (Philosophy)--Congresses.
Frege, Gottlob, 1848-1925--Congresses.
Logic--Congresses.
Mathematics--Philosophy--Congresses.
Philosophy, German--Congresses.