update in basic_2

[helm.git] / matita / matita / contribs / lambdadelta / basic_1 / lift / defs.ma

diff --git a/matita/matita/contribs/lambdadelta/basic_1/lift/defs.ma b/matita/matita/contribs/lambdadelta/basic_1/lift/defs.ma
index ba88961f44ab57e7514f069b08a3cdf51ca9062d..6c595922842e3d842aee274038b16a59ebcfed57 100644 (file)
--- a/matita/matita/contribs/lambdadelta/basic_1/lift/defs.ma
+++ b/matita/matita/contribs/lambdadelta/basic_1/lift/defs.ma
@@ -18,20 +18,18 @@ include "basic_1/tlist/defs.ma".
 
 include "basic_1/s/defs.ma".
 
-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))].
 
 definition lift:
  nat \to (nat \to (T \to T))
 \def
- \lambda (h: nat).(\lambda (i: nat).(\lambda (t: T).(let TMP_1 \def (\lambda 
-(x: nat).(plus x h)) in (lref_map TMP_1 i t)))).
+ \lambda (h: nat).(\lambda (i: nat).(\lambda (t: T).(lref_map (\lambda (x: 
+nat).(plus x h)) i t))).
 
-let rec lifts (h: nat) (d: nat) (ts: TList) on ts: TList \def match ts with 
-[TNil \Rightarrow TNil | (TCons t ts0) \Rightarrow (let TMP_1 \def (lift h d 
-t) in (let TMP_2 \def (lifts h d ts0) in (TCons TMP_1 TMP_2)))].
+rec definition lifts (h: nat) (d: nat) (ts: TList) on ts: TList \def match ts 
+with [TNil \Rightarrow TNil | (TCons t ts0) \Rightarrow (TCons (lift h d t) 
+(lifts h d ts0))].