Thesis

Hegel (Dialectic)

The first, immediate positing or assertion in a dialectical movement. The thesis is still abstract and calls forth its necessary opposition (antithesis), which then leads to synthesis (sublation) (Ch. 1.4, 24.4).

Origin

Antithesis; Synthesis; Dialectic; Sublation

In Hegel

Enc. §80 (in Hegel: thought as understanding; "thesis" is not Hegel's own word)