| Definitions | t  T, Msg(M),  x:A. B(x), locl(a), rcv(l,tg), x:A  B(x), IdLnk, Id, f(a), x:A   B(x), S  T, inr(x), Knd, Unit, Type, left+right, s = t, Prop, True, P   Q, type List,  A, P & Q, False, inl(x), outr(x), Void, destination(l),  b,   b,  , a = b, P   Q, tag(k), lnk(k), act(k), islocal(k), kindcase(k; a.f(a); l,t.g(l;t) ), w-kindtype(TA;M;i), w-automaton(T;TA;M), w.M, w.T, w.TA, Msg, vartype(i;x), w-machine(w;i), World, w-machine-independent(w;i;k;x) |