match m return ? with
[ mS n ⇒ nnzero n ].
-nrecord pair (n: nat) (x: dt n) (label: Type): Type ≝
- { lbl:label; l: pair label; r: pair label}.
\ No newline at end of file
+nrecord pair (n: nat) (x: DT n) (label: Type): Type ≝
+ { lbl:label; l: pair n x label; r: pair n x label}.
\ No newline at end of file