diff --git a/books/bookvol10.4.pamphlet b/books/bookvol10.4.pamphlet
index 942c067..fb61217 100644
--- a/books/bookvol10.4.pamphlet
+++ b/books/bookvol10.4.pamphlet
@@ -41321,8 +41321,8 @@ IncrementingMaps(R:Join(Monoid, AbelianSemiGroup)): with
         ++ argument it is given.  For example, if {f := increment(n)} then
         ++ \spad{f x} is \spad{x+n}.
   == add
-    increment() == 1 + #1
-    incrementBy n == n + #1
+    increment()   == x +-> 1 + x
+    incrementBy n == x +-> n + x
 
 @
 <<INCRMAPS.dotabb>>=
diff --git a/changelog b/changelog
index 461acff..8b67e93 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,5 @@
+20090604 tpd src/axiom-website/patches.html 20090604.01.tpd.patch
+20090604 tpd books/bookvol10.4 INCRMAPS +-> conversion
 20090603 tpd src/axiom-website/patches.html 20090603.05.tpd.patch
 20090603 tpd books/bookvol10.4 IDECOMP +-> conversion
 20090603 tpd src/axiom-website/patches.html 20090603.04.tpd.patch
diff --git a/src/axiom-website/patches.html b/src/axiom-website/patches.html
index 02e546a..d43e1e5 100644
--- a/src/axiom-website/patches.html
+++ b/src/axiom-website/patches.html
@@ -1435,5 +1435,7 @@ bookvol10.4 GB +-> conversion<br/>
 bookvol10.4 HEUGCD +-> conversion<br/>
 <a href="patches/20090603.05.tpd.patch">20090603.05.tpd.patch</a>
 bookvol10.4 IDECOMP +-> conversion<br/>
+<a href="patches/20090604.01.tpd.patch">20090604.01.tpd.patch</a>
+bookvol10.4 INCRMAPS +-> conversion<br/>
  </body>
 </html>