Hegel's dialectic

Hegel's dialectic, which he usually presented in a threefold manner, was vulgarized by Heinrich Moritz Chalybäus as comprising three dialectical stages of development: a thesis, giving rise to its reaction, an antithesis which contradicts or negates the thesis, and the tension between the two being resolved by means of a synthesis. Hegel rarely used these terms himself: this model is not Hegelian but Fichtean. https://www.cpp.edu/~zding/teaching/318-2/Dialectic.htmDialectic (cpp.edu)
Kaufmann also cites Hegel's criticism of the triad model commonly misattributed to him, adding that "the only place where Hegel uses the three terms together occurs in his lectures on the history of philosophy, on the last page but one of the sections on Kant—where Hegel roundly reproaches Kant for having 'everywhere posited thesis, antithesis, synthesis'".{ Hegel, Werke, ed. Glockner, XIX, 610 } via En Wiki.