formulas(sos).
Point(W).
all x (Object(x) -> (Situation(x) <-> (Ex1At(A,x,W) & (all F (Property(F) -> (Enc(x,F) -> (exists p (Proposition(p) & F=VAC(p))))))))).
all x (Object(x) -> (Actual(x) <-> (Situation(x) & (all p (Proposition(p) -> (TrueIn(p,x) -> True(p,W))))))).
all p all x ((Object(x) & Proposition(p)) -> (TrueIn(p,x) <-> Encp(x,p))).
all x all p ((Object(x) & Proposition(p)) -> (Encp(x,p)  <->  (exists F (Property(F) & F=VAC(p) & Enc(x,F))))).
all p all d all x ((Object(x) & Proposition(p) & Point(d)) -> (Ex1At(VAC(p),x,d) <-> True(p,d))).
end_of_list.
