n. 预想, 假定, 预先推测

[ noun ]
the act of presupposing; a supposition made prior to having knowledge (as for the purpose of argument)
<noun.cognition>

Presupposition \Pre*sup`po*si"tion\, n. [Pref. pre- +
supposition: cf. F. pr['e]supposition.]
1. The act of presupposing; an antecedent implication;
presumption.

2. That which is presupposed; a previous supposition or
surmise.