diff --git a/books/bookvol10.4.pamphlet b/books/bookvol10.4.pamphlet
index 5df8087..3ffc530 100644
--- a/books/bookvol10.4.pamphlet
+++ b/books/bookvol10.4.pamphlet
@@ -4136,7 +4136,7 @@ AssociatedEquations(R, L):Exports == Implementation where
       n := nrows m
       v:Vector MAT := new(n, zero(1, 0)$MAT)
       v.1 := mi := m
-      for i in 2..n repeat v.i := mi := map(diff #1, mi) + mi * m
+      for i in 2..n repeat v.i := mi := map((z1:R):R +-> diff z1, mi) + mi * m
       [makeMatrix(v, i) for i in 1..n]
  
     if R has Field then
diff --git a/changelog b/changelog
index 133ba78..93aafe8 100644
--- a/changelog
+++ b/changelog
@@ -1,3 +1,5 @@
+20090510 tpd src/axiom-website/patches.html 20090510.11.tpd.patch
+20090510 tpd books/bookvol10.4 ASSOCEQ +-> conversion
 20090510 tpd src/axiom-website/patches.html 20090510.10.tpd.patch
 20090510 tpd books/bookvol10.3 D01AMFA +-> conversion
 20090510 tpd src/axiom-website/patches.html 20090510.09.tpd.patch
diff --git a/src/axiom-website/patches.html b/src/axiom-website/patches.html
index a493dba..09b864b 100644
--- a/src/axiom-website/patches.html
+++ b/src/axiom-website/patches.html
@@ -1180,5 +1180,7 @@ bookvol10.4 INTPACK +-> conversion<br/>
 bookvol10.2 FLAGG +-> conversion<br/>
 <a href="patches/20090510.10.tpd.patch">20090510.10.tpd.patch</a>
 bookvol10.3 D01AMFA +-> conversion<br/>
+<a href="patches/20090510.11.tpd.patch">20090510.11.tpd.patch</a>
+bookvol10.4 ASSOCEQ +-> conversion<br/>
  </body>
 </html>