X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fmatita%2Fcontribs%2Flambda%2Fpolicy.txt;h=7743f9bbda954626ebb171114c749b05ce859401;hb=2e700622e2565c6695e8c1264dd4c1207896f28c;hp=ef8c96fce518c20b368e1aa0e66604e09d0b2a6c;hpb=178820be7648a60af17837727e51fd1f3f2791db;p=helm.git

diff --git a/matita/matita/contribs/lambda/policy.txt b/matita/matita/contribs/lambda/policy.txt
index ef8c96fce..7743f9bbd 100644
--- a/matita/matita/contribs/lambda/policy.txt
+++ b/matita/matita/contribs/lambda/policy.txt
@@ -4,13 +4,14 @@ A, B, C, D: term
 H         : transient premise
 IH        : inductive premise
 M, N      : term
+P, Q      : pointer tree
 R         : arbitrary relation
 T, U      : arbitrary small type
 
 c         : pointer step
-d, e      : variable reference depth 
+d, e      : variable reference level
 h         : relocation height
-i, j      : de Bruijn index
+i, j      : variable reference depth (de Bruijn index)
 k         : relocation height
 l         : arbitrary list
 m, n      : measures on terms