presupposition

Supposition in advance of experience or knowledge; surmise; conjecture.

Postulation as of an antecedent condition; hence, that which is postulated as a necessary antecedent condition; a prerequisite.

The act of presupposing; an antecedent implication; presumption.

That which is presupposed; a previous supposition or surmise.

An assumption made beforehand; a preliminary conjecture or speculation.