Before revision: These include those by Johann Heinrich Lambert (1728–1777), Immanuel Kant (1724–1804), G. W. F. Hegel (1770–1831 ; Hegel's approach to philosophy is sometimes referred to as dialectical phenomenology ), and Carl Stumpf (1848–1936), among others.
After revision: These include those by Johann Heinrich Lambert (1728–1777), Immanuel Kant (1724–1804), G. W. F. Hegel (1770–1831 ), and Carl Stumpf (1848–1936), among others.