Definitions | MsgA, M.state, M.da(a), M.ef(k,x,s,v,w), M.ds(x), z != f(x)  P(a;z), b, x dom(f), , s = t, suptype(S; T), f(a), f(x), P  Q, product-deq(A;B;a;b), a:A fp B(a), t.1, x:A B(x), t.2, <a, b>, , KindDeq, State(ds), Knd, Valtype(da;k), S T, x:A B(x),  x. t(x), x.A(x), Top, f(x)?z, Void, Type, x:A. B(x), Id, IdDeq, t T |