Columbia subject headings:
Knowledge, Theory of.
Language and languages--Philosophy.
Logic--Early works to 1800.
Harvard subject headings:
Knowledge, Theory of
Language and languages--Philosophy
Logic--Early works to 1800
Princeton subject headings:
Knowledge, Theory of--Early works to 1800.
Language and languages--Early works to 1800.
Logic--Early works to 1800.
Phenomenology--Early works to 1800.
Semiotics--Early works to 1800.