1 files changed, 3 insertions, 1 deletions
diff --git a/sets.py b/sets.py
index af0cd4e..eae0eef 100644
--- a/sets.py
+++ b/sets.py
@@ -108,7 +108,9 @@ if len(next.elems) > 0:
 
 formula = sys.argv[1]
 formula = formula.replace('\\', '-').replace('*', '&').replace('+', '|')
-formula = formula.replace('C', '~').replace('!', '~')
+formula = formula.replace('C', '~').replace('!', '~').replace('¬', '~')
+
+
 
 for i in range(0, 10):
     formula = formula.replace('%i' % i, 'sets[%i]' % i)