v. t. [ imp. & p. p. Presupposed p. pr. & vb. n. Presupposing. ] [ Pref. pre- + suppose: cf. F. présupposer. ] To suppose beforehand; to imply as antecedent; to take for granted; to assume; as, creation presupposes a creator. [ 1913 Webster ]
Each [ kind of knowledge ] presupposes many necessary things learned in other sciences, and known beforehand. Hooker. [ 1913 Webster ]