Definitions | , AB, hd(l), (x l), P Q, sender(e), ij, Top, ||as||, P Q, SQType(T), {T}, P Q, x when e, vartype(i;x), ES, T, True, val(e), valtype(e), b, b, A, False, x:A. B(x), if b t else f fi, IdLnk, rcv(l,tg), , D realizes es. P(es), Dsys, D1 D2, World, FairFifo, PossibleWorld(D;w), A & B, E, Id, loc(e), source(l), P & Q, Prop, Knd, kind(e), ES(the_w), x:A. B(x), P Q, t T |