ASSUMPTION (assumo, to take for granted).—(1) The accepted premiss from which an
inquiry or argument takes its start; (2) with emphasis on the prefix, it is used
to designate the subordinate premiss, connected with the more general.
Of enunciations or premises, that which is taken universally is called the
proposition, that which is less universal and comes into the mind secondarily is
called the assumption (Trendelenburg, Notœ in Arist.).
The assumption is thus the minor proposition in a syllogism, the major being
named in contrast the presumption. The terms more commonly in use are sumption,