Derek Moran
PRESUMPTION OF LAW: an INFERENCE in favour of a particular fact; a RULE OF LAW, whereby a finding of a basic fact, gives rise to the existence of a presumed fact or state-of-affairs, UNLESS the presumption can be REBUTTED, or proven false, by the party seeking to deny the presumed fact.
(Fundamentals of Contract Law, Jean Fitzgerald & Laurence Olivo, Emond Montgomery Publications)