A condition; that from which something follows: as, freedom is the hypothesis of democracy.A proposition assumed and taken for granted, to be used as a premise in proving something else; a postulate.A supposition; a judgment concerning an imaginary state of things, or the imaginary state of things itself concerning whose consequences some statement is made or question is asked; the antecedent of a conditional proposition; the proposition disproved by reductio ad absurdum.The conclusion of an argument from consequent and antecedent; a proposition held to be probably true because itsconsequences, according to known general principles, are found to be true; the supposition that an object has a certain character, from which it would necessarily follow that it must possess other characters which it is observed to possess.An ill-supported theory; a proposition not believed, but whose consequences it is thought desirable to compare with facts.