ds:x:Id fp Type, da:k:Knd fp Type, es:ES, i:Id, e1, e2:{e:E| loc(e) = i }.
(x:Id. vartype(i;x)  ds(x)?Top)
 (e:E. loc(e) = i  valtype(e)  da(kind(e))?Top)
 (e1 <loc e2)
 es-hist{i:l}(es;e1;e2)
 =
 (es-hist{i:l}(es;e1;pred(e2)) @ [es-info(es;e2)])
  event-info(ds;da) List 

latex

Definitions	t  T, x:A. B(x), P  Q, Id, x. t(x), a:A fp B(a), Knd, ES, loc(e), E, Top, IdDeq, f(x)?z, vartype(i;x), kind(e), KindDeq, valtype(e), (e <loc e'), es-hist{i:l}(es;e1;e2), pred(e), as @ bs, event-info(ds;da)
Lemmas	es-interval-eq, es-locl wf, es-valtype wf, Kind-deq wf, es-kind wf, es-vartype wf, fpf-cap wf, id-deq wf, top wf, es-E wf, es-loc wf, event system wf, Knd wf, fpf wf, Id wf, es-hist-partition, es-le-self