diff --git a/iterpy/arr.py b/iterpy/arr.py
index e9d44a1..9a56fd3 100644
--- a/iterpy/arr.py
+++ b/iterpy/arr.py
@@ -26,6 +26,8 @@ def __len__(self) -> int:
         return len(self._iter)
 
     def __bool__(self) -> bool:
+        if self.len() == 0:
+            return False
         return self.lazy().__bool__()
 
     def __iter__(self) -> Arr[T]:
diff --git a/iterpy/test_arr.py b/iterpy/test_arr.py
index ed04d67..0fbe94e 100644
--- a/iterpy/test_arr.py
+++ b/iterpy/test_arr.py
@@ -161,6 +161,15 @@ def test_chain():
     assert result == [1, 2, 3, 4]
 
 
+def test_empty_is_falsy():
+    test_iterator = Arr([])  # type: ignore
+    assert not test_iterator
+
+    test_iterator = Arr([1])
+    assert test_iterator
+    assert bool(test_iterator) is True
+
+
 @pytest.mark.benchmark()
 def test_benchmark_large_flattening():
     test_input = Arr(range(100_000)).map(lambda x: Arr([x]))