| NCases of loc * NotationPt.term * npattern
| NCase1 of loc * string
| NChange of loc * npattern * NotationPt.term
+ | NClear of loc * string list
| NConstructor of loc * int option * NotationPt.term list
| NCut of loc * NotationPt.term
(* | NDiscriminate of loc * NotationPt.term