the speaker's commitment to the actuality of the proposition expressed in a clause. Epistemic stance is normally presupposed. Epistemic stance is divided by Fillmore (1990b) into three categories: positive, neutral, and negative. Others use a finer-grained categorization (e.g., partial positive and partial negative), and still others refer to a continuum of hypotheticality. Non-positive (i.e., neutral and negative) epistemic stances are referred to as hypothetical. (Section 17.3.1)