mb event system 6 Sections EventSystems Doc
IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
Def first(e)
Def == 1of(2of(2of(2of(2of(2of(2of(2of(2of(2of(2of(2of(2of(2of(2of(
Def == 1of(es)))))))))))))))
Def == (e)

is mentioned by

Thm* i:Id, T:Type, v:Tx:Id.
Thm* @ix:T
Thm* @ixinitially x = v 
Thm* realizes es.(vartype(i;xT)
Thm* realizes es.& (e:E. loc(e) = i  Id  first(e (x when e) = v  T)
[init-rule]

In prior sections: mb event system 2 mb event system 3

Try larger context: EventSystems IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html

mb event system 6 Sections EventSystems Doc