| Definitions | s = t, t  T, x:A  B(x),  x:A. B(x), chain_sys(Cmd), e  X,  b, Type,  , {x:A| B(x)} , E, ES, AbsInterface(A), x:A  B(x), left + right, chain_config(), Sys(valid), E(X), a:A fp B(a), strong-subtype(A;B), P   Q, let x,y = A in B(x;y), t.1, P  Q, P & Q, P Q, type List, f(x)?z, EState(T), f(a), Id,  , EqDecider(T), Unit, IdLnk, EOrderAxioms(E; pred?; info), kindcase(k; a.f(a); l,t.g(l;t) ), Knd, loc(e), kind(e), Msg(M),  , val-axiom(E;V;M;info;pred?;init;Trans;Choose;Send;val;time), r  s, e < e',  , constant_function(f;A;B), SWellFounded(R(x;y)), pred!(e;e'),   x,y. t(x;y), Void,  x:A.B(x), Top, S  T, suptype(S; T), first(e),  A, <a, b>, pred(e), x.A(x), x. t(x), f g, loc(e), vartype(i;x), state@i, State(ds), State(ds), True,  T, valid-sys(es;Config;Sys;e), case b of inl(x) => s(x) | inr(y) => t(y), if b then t else f fi , chain_sys_ind(x;cmd.input(cmd);from,cmds.update(from;cmds)), A c B |