the system consisting of a condensor, an associated control-volume, and a heat-transfer process.
the heat transfer process in the condensor
the control volume associated with the condensor in the condensor-with-heat-transfer-system
(Forall (?Self ?Time) (<=> (Active ?Time Condensor-With-Heat-Transfer-System ?Self) (And (Condensor-With-Heat-Transfer-System ?Self) (Active ?Time System-With-Condensor ?Self))))