Definitions | t T, P  Q, x:A. B(x), A & B, ES(the_w), E, s = t, (e <loc e'), left+right, Void, x:A B(x), Knd, x:A B(x), x:A. B(x), False, P Q, A, 1of(t), IdDeq, Id, x:A. B(x), Top, Atom$n, Type, Dsys, D1 D2, World, P & Q, FairFifo, PossibleWorld(D;w), loc(e), Prop, locl(a), kind(e), valtype(e), vartype(i;x), s.x, (x after e), x when e, e@i. P(e), e e'.P(e'), @i Precondition for a(v)P State(ds) (v:T), D realizes es. P(es),  x. t(x), State(ds), f(x)?z, ma-single-pre1(x;A;a;T;y,v.P(y;v)), f(a), x(s1,s2), x.A(x), x : v |