(=> (Assumption ?Assumption) (Exists (?Actor) (Assumed ?Actor ?Assumption)))
(<=> (Assumption ?Assumption) (And (State-Of-Affairs ?Assumption) (Qua-Entity ?Assumption) (Exists (?Actor) (Assumed ?Actor ?Assumption))))
(Forall (?Sgc-Planning ?Assumption) (=> (And (Strategic-Planning ?Sgc-Planning) (Assumption ?Assumption) (Planning-Assumption ?Sgc-Planning ?Assumption)) (Used-Or-Associated-With ?Assumption ?Sgc-Planning)))