Columbia subject headings:
Dialectic.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Adversaries.
Hegel, Georg Wilhelm Friedrich, 1770-1831.
Logic.
Harvard subject headings:
Dialectic.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Adversaries.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Contributions in dialectic.
Logic.
Princeton subject headings:
Dialectic--History.
Hegel, Georg Wilhelm Friedrich, 1770-1831.