ds:x:Id fp Type, da:k:Knd fp Type, x:ecl(ds;da). eclcatch?(x)  eclcatch-a(x)  ecl(ds;da) 

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Definitions	x:A. B(x), ecl(ds;da), P  Q, b, eclcatch?(x), t  T, eclcatch-a(x), false, true, if b t else f fi, x. t(x), False, x(s), eclbase(k;test), Prop, eclseq(a;b), ecland(a;b), eclor(a;b), [a]*, a.n, eclthrow(a;n), eclcatch(a;l)
Lemmas	false wf, true wf, assert wf, eclcatch? wf, ecl wf, fpf wf, Knd wf, Id wf