the two-input, one-output control volume
(Forall (?Self ?Time)
(<=> (Active ?Time 2-1-Control-Volume ?Self)
(And (2-1-Control-Volume ?Self)
(Active ?Time 2-Input-Control-Volume ?Self)
(Active ?Time 1-Output-Control-Volume ?Self))))
(Forall (?Self ?Time)
(<=> (Active ?Time 2-1-Control-Volume ?Self)
(And (2-1-Control-Volume ?Self)
(Active ?Time 2-Input-Control-Volume ?Self)
(Active ?Time 1-Output-Control-Volume ?Self))))
(Inherited-Facet-Value Slot-Value-Type
2-1-Open-Feedwater-Heater-System
Opn-Fwt-Htr-Cv
2-1-Control-Volume)
(=> (2-1-Open-Feedwater-Heater-System ?Self)
(And (Value-Cardinality ?Self Opn-Fwt-Htr 1)
(Value-Type ?Self Opn-Fwt-Htr 2-1-Open-Feedwater-Heater)
(Value-Cardinality ?Self Opn-Fwt-Htr 1)
(Value-Cardinality ?Self Opn-Fwt-Htr-Cv 1)
(Value-Type ?Self Opn-Fwt-Htr-Cv 2-1-Control-Volume)
(Value-Cardinality ?Self Opn-Fwt-Htr-Cv 1)
(Value-Cardinality ?Self Adbtc-Mxng-Prcs 1)
(Value-Type ?Self
Adbtc-Mxng-Prcs
Steady-Flow-Adiabatic-Mixing)
(Value-Cardinality ?Self Adbtc-Mxng-Prcs 1)
(Cv-Component (Opn-Fwt-Htr-Cv ?Self) (Opn-Fwt-Htr ?Self))
(Component-Cv (Opn-Fwt-Htr ?Self) (Opn-Fwt-Htr-Cv ?Self))
(Process-Cv (Adbtc-Mxng-Prcs ?Self) (Opn-Fwt-Htr-Cv ?Self))))
(=> (Opn-Fwt-Htr-Cv $X $Y) (2-1-Control-Volume $Y))