include "ground_1/preamble.ma".
-let rec blt (m: nat) (n: nat) on n: bool \def match n with [O \Rightarrow
-false | (S n0) \Rightarrow (match m with [O \Rightarrow true | (S m0)
-\Rightarrow (blt m0 n0)])].
+rec definition blt (m: nat) (n: nat) on n: bool \def match n with [O
+\Rightarrow false | (S n0) \Rightarrow (match m with [O \Rightarrow true | (S
+m0) \Rightarrow (blt m0 n0)])].