Columbia subject headings:
Dialectic.
Hegel, Georg Wilhelm Friedrich, 1770-1831. Wissenschaft der Logik.
Heidegger, Martin, 1889-1976.
Harvard subject headings:
Dialectic.
Hegel, Georg Wilhelm Friedrich, 1770-1831. Wissenschaft der Logik.
Heidegger, Martin, 1889-1976
Princeton subject headings: