-let rec lref_map (f: (nat \to nat)) (d: nat) (t: T) on t: T \def match t with
-[(TSort n) \Rightarrow (TSort n) | (TLRef i) \Rightarrow (let TMP_4 \def (blt
-i d) in (let TMP_5 \def (match TMP_4 with [true \Rightarrow i | false
-\Rightarrow (f i)]) in (TLRef TMP_5))) | (THead k u t0) \Rightarrow (let
-TMP_1 \def (lref_map f d u) in (let TMP_2 \def (s k d) in (let TMP_3 \def
-(lref_map f TMP_2 t0) in (THead k TMP_1 TMP_3))))].
+rec definition lref_map (f: (nat \to nat)) (d: nat) (t: T) on t: T \def match
+t with [(TSort n) \Rightarrow (TSort n) | (TLRef i) \Rightarrow (TLRef (match
+(blt i d) with [true \Rightarrow i | false \Rightarrow (f i)])) | (THead k u
+t0) \Rightarrow (THead k (lref_map f d u) (lref_map f (s k d) t0))].