Some definitions of interest.
eventtype	Def eventtype(k;loc;V;M;e) == kindcase(k(e);a.V(loc(e),a);l,t.M(l,t))
	Thm* E:Type, V:(IdIdType), M:(IdLnkIdType), loc:(EId), k:(EKnd), Thm* e:E. eventtype(k;loc;V;M;e)  Type
fair-fifo	Def FairFifo Def == (i:Id, t:, l:IdLnk. source(l) = i  onlnk(l;m(i;t)) = nil  Msg List) Def == & (i:Id, t:. Def == & (isnull(a(i;t)) Def == & ( Def == & ((x:Id. s(i;t+1).x = s(i;t).x  vartype(i;x)) Def == & (& m(i;t) = nil  Msg List) Def == & (i:Id, t:, l:IdLnk. Def == & (isrcv(l;a(i;t)) Def == & ( Def == & (destination(l) = i Def == & (& ||queue(l;t)||1 & hd(queue(l;t)) = msg(a(i;t))  Msg) Def == & (l:IdLnk, t:. Def == & (t':.  Def == & (tt' & isrcv(l;a(destination(l);t'))  queue(l;t') = nil  Msg List)
locl	Def locl(a) == inr(a)
	Thm* a:Id. locl(a)  Knd
w-E	Def E == {p:(Id)| isnull(a(1of(p);2of(p))) }
w-M	Def w.M == 1of(2of(2of(w)))
w-V	Def V(i;k) == kindcase(k;a.1of(2of(w))(i,a);l,tg.1of(2of(2of(w)))(l,tg))
w-ekind	Def kind(e) == kind(act(e))
w-loc	Def loc(e) == 1of(e)
world	Def World Def == T:IdIdType Def == TA:IdIdType Def == M:IdLnkIdType Def == (i:Id(x:IdT(i,x)))(i:Idaction(w-action-dec(TA;M;i))) Def == (i:Id({m:Msg(M)| source(mlnk(m)) = i } List))Top
	Thm* World  Type{i'}

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