1 files changed, 7 insertions, 0 deletions
diff --git a/book/examples/chapter2/Copy.gf b/book/examples/chapter2/Copy.gf
new file mode 100644
index 000000000..58d74861c
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+++ b/book/examples/chapter2/Copy.gf
@@ -0,0 +1,7 @@
+concrete Copy of CopyAbs = {
+  lincat S, AB = Str ;
+  lin s x = x ++ x ;
+      end = [] ;
+      a x = "a" ++ x ;
+      b x = "b" ++ x ;
+}