mb event system 6 Sections EventSystems Doc
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Def d-single-effect(idsdakxf)(j)
Def == if eqof(IdDeq)(j,i) ma-single-effect(dsdakxf) else  fi

is mentioned by

Thm* i,x:Id, k:Knd, ds:x:Id fp-> Type, da:a:Knd fp-> Type,
Thm* f:(State(ds)ma-valtype(dak)ds(x)?Void).
Thm* d-single-effect(idsdakxf
Thm* realizes es.(x:Id. vartype(i;xds(x)?Top)
Thm* realizes es.& (e:E. 
Thm* realizes es.& (loc(e) = i  Id  (valtype(er ma-valtype(da; kind(e))))
Thm* realizes es.& (e:E. 
Thm* realizes es.& (loc(e) = i  Id
Thm* realizes es.& (
Thm* realizes es.& (kind(e) = k  Knd
Thm* realizes es.& (
Thm* realizes es.& ((x after e) = f((z.(z when e)),val(e))  ds(x)?Top)
[effect-rule]

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mb event system 6 Sections EventSystems Doc