+

StateObject ObjectForm SetForm BaseObject BaseSet

++

StateObject ObjectForm SeqForm SetForm BaseObject BaseSeq BaseSet

+:

StateObject ObjectForm SeqForm BaseObject BaseSeq

-

StateObject ObjectForm SetForm BaseObject BaseSet

--

StateObject ObjectForm SetForm BaseObject BaseSet

/

DeltaObject DeltaValue FormObject FormValue StateObject ObjectDelta ObjectForm BaseObject BaseSeq BaseValue

:+

StateObject ObjectForm SeqForm BaseObject BaseSeq