Def @i (with ds: ds action a:T precondition a(v) is P s v)(j)
Def == if eqof(IdDeq)(j,i) (with ds: ds action a:T precondition a(v) is P s v)
Def == else  fi

is not otherwise mentioned in this or prior sections.

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