# HG changeset patch
# User paulson
# Date 935074478 -7200
# Node ID f1a37c379317c3348c3730057c29aa488b91e74d
# Parent  3b1b301467cdad89a2745552736fa5a58128f365
updated

diff -r 3b1b301467cd -r f1a37c379317 src/HOL/README.html
--- a/src/HOL/README.html	Thu Aug 19 16:33:53 1999 +0200
+++ b/src/HOL/README.html	Thu Aug 19 16:54:38 1999 +0200
@@ -20,8 +20,9 @@
 <DT>Induct
 <DD>examples of (co)inductive definitions
 
-<DT>Integ
-<DD>a theory of the integers including efficient integer calculations
+<DT>Integ 
+<DD>a development of the integers including efficient integer
+calculations (part of the standard HOL environment)
 
 <DT>IOA
 <DD>extended example of Input/Output Automata
@@ -29,8 +30,19 @@
 <DT>Lambda
 <DD>a proof of the Church-Rosser theorem for lambda-calculus
 
+<DT>Real 
+<DD>a development of the reals and hyper-reals, which are used in
+non-standard analysis.  Also includes the positive rationals.  Used to build
+the image HOL-Real.
+
 <DT>Subst
-<DD>subdirectory defining a theory of substitution and unification.
+<DD>defines a theory of substitution and unification.
+
+<DT>Tools
+<DD>holds code used to provide support for records, datatypes, induction, etc.
+
+<DT>UNITY
+<DD>Chandy and Misra's UNITY formalism.
 </DL>
 
 Useful references on Higher-Order Logic: