diff --git a/test/numpy/test_funcs.py b/test/numpy/test_funcs.py
index 74ac1164687823583af8143ad7d4cbea234f6f84..f4c4b4c2982978a71be51aa745c6e81f67b5fca3 100644
--- a/test/numpy/test_funcs.py
+++ b/test/numpy/test_funcs.py
@@ -1,14 +1,13 @@
 import numpy as np
 import pytest
 
-from treetensor.numpy import TreeNumpy, equal, array_equal
-from treetensor.numpy import all as _numpy_all
+import treetensor.numpy as tnp
 
 
 # noinspection DuplicatedCode
 @pytest.mark.unittest
 class TestNumpyFuncs:
-    _DEMO_1 = TreeNumpy({
+    _DEMO_1 = tnp.TreeNumpy({
         'a': np.array([[1, 2, 3], [5, 6, 7]]),
         'b': np.array([1, 3, 5, 7]),
         'x': {
@@ -17,7 +16,7 @@ class TestNumpyFuncs:
         }
     })
 
-    _DEMO_2 = TreeNumpy({
+    _DEMO_2 = tnp.TreeNumpy({
         'a': np.array([[1, 2, 3], [5, 6, 8]]),
         'b': np.array([1, 3, 5, 7]),
         'x': {
@@ -26,7 +25,7 @@ class TestNumpyFuncs:
         }
     })
 
-    _DEMO_3 = TreeNumpy({
+    _DEMO_3 = tnp.TreeNumpy({
         'a': np.array([[1, 2, 3], [5, 6, 7]]),
         'b': np.array([1, 3, 5, 7]),
         'x': {
@@ -36,26 +35,53 @@ class TestNumpyFuncs:
     })
 
     def test_all(self):
-        assert not _numpy_all(np.array([True, True, False]))
-        assert _numpy_all(np.array([True, True, True]))
+        assert tnp.all(np.array([True, True, True]))
+        assert not tnp.all(np.array([True, True, False]))
+        assert not tnp.all(np.array([False, False, False]))
 
-        assert not _numpy_all(self._DEMO_1 == self._DEMO_2)
-        assert _numpy_all(self._DEMO_1 == self._DEMO_3)
-        assert not _numpy_all(np.array([1, 2, 3]) == np.array([1, 2, 4]))
-        assert _numpy_all(np.array([1, 2, 3]) == np.array([1, 2, 3]))
+        assert tnp.all(tnp.TreeNumpy({
+            'a': np.array([True, True, True]),
+            'b': np.array([True, True, True]),
+        }))
+        assert not tnp.all(tnp.TreeNumpy({
+            'a': np.array([True, True, True]),
+            'b': np.array([True, True, False]),
+        }))
+        assert not tnp.all(tnp.TreeNumpy({
+            'a': np.array([False, False, False]),
+            'b': np.array([False, False, False]),
+        }))
+
+    def test_any(self):
+        assert tnp.any(np.array([True, True, True]))
+        assert tnp.any(np.array([True, True, False]))
+        assert not tnp.any(np.array([False, False, False]))
+
+        assert tnp.any(tnp.TreeNumpy({
+            'a': np.array([True, True, True]),
+            'b': np.array([True, True, True]),
+        }))
+        assert tnp.any(tnp.TreeNumpy({
+            'a': np.array([True, True, True]),
+            'b': np.array([True, True, False]),
+        }))
+        assert not tnp.any(tnp.TreeNumpy({
+            'a': np.array([False, False, False]),
+            'b': np.array([False, False, False]),
+        }))
 
     def test_equal(self):
-        assert _numpy_all(equal(
+        assert tnp.all(tnp.equal(
             np.array([1, 2, 3]),
             np.array([1, 2, 3]),
         ))
-        assert not _numpy_all(equal(
+        assert not tnp.all(tnp.equal(
             np.array([1, 2, 3]),
             np.array([1, 2, 4]),
         ))
 
-        assert _numpy_all(
-            equal(self._DEMO_1, self._DEMO_2) == TreeNumpy({
+        assert tnp.all(
+            tnp.equal(self._DEMO_1, self._DEMO_2) == tnp.TreeNumpy({
                 'a': np.array([[True, True, True], [True, True, False]]),
                 'b': np.array([True, True, True, True]),
                 'x': {
@@ -64,8 +90,8 @@ class TestNumpyFuncs:
                 }
             })
         )
-        assert _numpy_all(
-            equal(self._DEMO_1, self._DEMO_3) == TreeNumpy({
+        assert tnp.all(
+            tnp.equal(self._DEMO_1, self._DEMO_3) == tnp.TreeNumpy({
                 'a': np.array([[True, True, True], [True, True, True]]),
                 'b': np.array([True, True, True, True]),
                 'x': {
@@ -76,16 +102,16 @@ class TestNumpyFuncs:
         )
 
     def test_array_equal(self):
-        assert _numpy_all(array_equal(
+        assert tnp.all(tnp.array_equal(
             np.array([1, 2, 3]),
             np.array([1, 2, 3]),
         ))
-        assert not _numpy_all(array_equal(
+        assert not tnp.all(tnp.array_equal(
             np.array([1, 2, 3]),
             np.array([1, 2, 4]),
         ))
 
-        assert array_equal(self._DEMO_1, self._DEMO_2) == TreeNumpy({
+        assert tnp.array_equal(self._DEMO_1, self._DEMO_2) == tnp.TreeNumpy({
             'a': False,
             'b': True,
             'x': {
@@ -93,7 +119,7 @@ class TestNumpyFuncs:
                 'd': True,
             }
         })
-        assert array_equal(self._DEMO_1, self._DEMO_3) == TreeNumpy({
+        assert tnp.array_equal(self._DEMO_1, self._DEMO_3) == tnp.TreeNumpy({
             'a': True,
             'b': True,
             'x': {
diff --git a/treetensor/numpy/funcs.py b/treetensor/numpy/funcs.py
index b67a9e8f78e07c1a8cce8c9e958d788ad950f8e3..6322783f227fcc580f3a741537f8882e0f2e3ed9 100644
--- a/treetensor/numpy/funcs.py
+++ b/treetensor/numpy/funcs.py
@@ -2,11 +2,11 @@ import numpy as np
 from treevalue import func_treelize as original_func_treelize
 
 from .numpy import TreeNumpy
-from ..common import ireduce
+from ..common import ireduce, TreeObject
 from ..utils import replaceable_partial
 
 __all__ = [
-    'all',
+    'all', 'any',
     'equal', 'array_equal',
 ]
 
@@ -14,11 +14,17 @@ func_treelize = replaceable_partial(original_func_treelize, return_type=TreeNump
 
 
 @ireduce(all)
-@func_treelize()
+@func_treelize(return_type=TreeObject)
 def all(a, *args, **kwargs):
     return np.all(a, *args, **kwargs)
 
 
+@ireduce(any)
+@func_treelize()
+def any(a, *args, **kwargs):
+    return np.any(a, *args, **kwargs)
+
+
 @func_treelize()
 def equal(x1, x2, *args, **kwargs):
     return np.equal(x1, x2, *args, **kwargs)