es:ES, Sys:AbsInterface(Top). sys-antecedent(es;Sys)  Type 

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Up	abstract chain replication
Definitions of Statement	sys-antecedent(es;Sys)
Definitions	s = t, t  T, x:AB(x), x:A. B(x), ES, EState(T), a:A fp B(a), f(a), Id, , strong-subtype(A;B), P  Q, Type, EqDecider(T), Unit, left + right, IdLnk, x:A  B(x), EOrderAxioms(E; pred?; info), kindcase(k; a.f(a); l,t.g(l;t) ), Knd, loc(e), kind(e), Msg(M), type List, , val-axiom(E;V;M;info;pred?;init;Trans;Choose;Send;val;time), r  s, e < e', , b, 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), P & Q, E, AbsInterface(A), E(X), {x:A| B(x)} , e c e', (e < e'), e  X, sys-antecedent(es;Sys)
Lemmas	es-interface wf, es-is-interface wf, es-causl wf, es-E-interface wf, es-causle wf, es-E-interface-subtype rel, es-E wf, deq wf, EOrderAxioms wf, kind wf, Msg wf, nat wf, val-axiom wf, cless wf, qle wf, bool wf, Knd wf, kindcase wf, IdLnk wf, constant function wf, loc wf, not wf, assert wf, first wf, top wf, unit wf, pred! wf, strongwellfounded wf, member wf, rationals wf, Id wf, EState wf, subtype rel wf, event system wf