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-rw-r--r--README.md1
1 files changed, 1 insertions, 0 deletions
diff --git a/README.md b/README.md
index f68fc3f..6eefa12 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,7 @@ example apears at the end of the document, following the tutorial.
``` lisp
(defun all-subsets (list)
+ "Generate the set of all subsets of a given set."
(if (null list) (seq (list nil))
(concat! (all-subsets (cdr list))
(map! (lambda (sub) (cons (car list) sub))