Nuprl Lemma : es-interval-eq 0,22

es:ES, e:E. [e, e] ~ [e] 
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Definitionst  T, x:A. B(x), E, [e, e'], ES, before(e), es-ble{i:l}(es;e;e'), filter(P;l), b, xL. P(x), P  Q, False, A, e  e' , Prop, P  Q, P & Q, P  Q, x(s), (x  l), (e <loc e'), 1of(t), source(l), destination(l), 2of(t), tag(k), msg(l;t;v), tl(l), i<j, ij, nth_tl(n;as), hd(l), l[i], SWellFounded(R(x;y)), Trans x,y:T. E(x;y), ESAxioms(E;T;M;loc;kind;val;when;after;sends;sender;index;first;pred;causl), outl(x), lnk(k), Y, ||as||, i  j < k, {i..j}, isrcv(k), mlnk(m), haslink(l;m), Msg(M), Msg_sub(l;M), isl(x), b, islocal(k), if b t else f fi, kindcase(k; a.f(a); l,t.g(l;t) ), eventtype(k;loc;V;M;e), Knd, Top, IdLnk, AB, , Id, Unit, , EqDecider(T), {T}, SQType(T)
Lemmaseqtt to assert, iff transitivity, eqff to assert, assert of bnot, bool wf, bnot wf, not wf, es-le-self, filter wf, es-le-not-locl, es-le-loc, es-loc-pred, member-es-before, l member wf, not functionality wrt iff, assert-es-ble, assert wf, es-le wf, filter is nil, event system wf, filter append, es-ble wf, es-before wf, es-E wf

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