Columbia subject headings:
Hegel, Georg Wilhelm Friedrich, 1770-1831.
Logic, Modern.
Logic.
Metaphysics.
Harvard subject headings:
Hegel, Georg Wilhelm Friedrich, 1770-1831--Contributions in logic.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Influence.
Logic, Modern.
Princeton subject headings:
Hegel, Georg Wilhelm Friedrich, 1770-1831.
Logic.
Metaphysics.