Definitions | (e < e'), sys-cmds(x), ccsucc-id(x), let x = a in b(x), ccsucc-num(x), a < b, ||as||, type List, csupdate-cmds(x), nth_tl(n;as), cmd-history(e), Id, loc(e), x:A. B(x), (e <loc e'), P Q, P Q, valid-sys(es;Config;Sys;e), P & Q, e X, ccsucc?(x), x:A. B(x), {x:A| B(x)} , E(X), b, csupdate?(x), X(e), s = t, E, f(a) |