the class of operating mode models of 2d streams
the 2d stream involved
(Forall (?Self ?2d-Stream-Involved) (<=> (And (= (2d-Stream-Involved ?Self) ?2d-Stream-Involved) (2d-Stream-Operating-Mode ?Self)) (And (Operating-Mode-Model ?Self) (2d-Stream ?2d-Stream-Involved)))) (Forall (?Self ?Time) (<=> (Active ?Time 2d-Stream-Operating-Mode ?Self) (And (2d-Stream-Operating-Mode ?Self) (Active ?Time Operating-Mode-Model ?Self))))