1 files changed, 2 insertions, 0 deletions

diff --git a/example.pl b/example.pl
index 8f5f0c2..bf30ba6 100644
--- a/example.pl
+++ b/example.pl
@@ -23,4 +23,6 @@ list2(A) :- A = [a,b|c].
 
 curly(A) :- A = {one,two,three}.
 
+=(A,A).
+
 :- initialization(could_be_friends(bob, sam)).
\ No newline at end of file