Pre`sup*pose" (?), v. t. [imp. & p. p. Presupposed (?); p. pr. & vb. n. Presupposing.] [Pref. pre- + suppose: cf. F. pr'esupposer.]
To suppose beforehand; to imply as antecedent; to take for granted; to assume; as, creation presupposes a creator.
Each [kind of knowledge] presupposes many necessary things learned in other sciences, and known beforehand.
© Webster 1913.