-include "Nat/defs.ma".
-
-inductive NLE: Nat \to Nat \to Prop \def
- | NLE_zero: \forall q. NLE zero q
- | NLE_succ: \forall p,q. NLE p q \to NLE (succ p) (succ q)
-.
+definition NLE: Nat \to Nat \to Prop \def
+ \lambda q,r. \exists p. (p + q == r).