Fix

Author: MaximSmolskiy

fuzzy_logic/fuzzy_operations.py

@@ -147,7 +147,7 @@ def union(self, other) -> FuzzySet:
             FuzzySet: A new fuzzy set representing the union.
 
         >>> FuzzySet("a", 0.1, 0.2, 0.3).union(FuzzySet("b", 0.4, 0.5, 0.6))
-        FuzzySet(name='a ∪ b', left_boundary=0.1, peak=0.6, right_boundary=0.35)
+        FuzzySet(name='a U b', left_boundary=0.1, peak=0.6, right_boundary=0.35)
         """
         return FuzzySet(
             f"{self.name} U {other.name}",