diff --git a/lib/tensors/Tensor_logical.h b/lib/tensors/Tensor_logical.h
new file mode 100644
index 00000000..5ded9f9c
--- /dev/null
+++ b/lib/tensors/Tensor_logical.h
@@ -0,0 +1,32 @@
+#ifndef GRID_TENSOR_LOGICAL_H
+#define GRID_TENSOR_LOGICAL_H
+
+namespace Grid {
+
+#define LOGICAL_BINOP(Op)\
+template<class v> strong_inline iScalar<v> operator Op (const iScalar<v>& lhs,const iScalar<v>& rhs) \
+{\
+  iScalar<v> ret;\
+  ret._internal = lhs._internal Op rhs._internal ;\
+  return ret;\
+}\
+template<class l> strong_inline iScalar<l> operator Op (const iScalar<l>& lhs,Integer rhs) \
+{\
+  typename iScalar<l>::scalar_type t; t=rhs;\
+  typename iScalar<l>::tensor_reduced srhs; srhs=t;\
+  return lhs Op srhs;\
+}\
+template<class l> strong_inline iScalar<l> operator Op (Integer lhs,const iScalar<l>& rhs) \
+{\
+  typename iScalar<l>::scalar_type t;t=lhs;\
+  typename iScalar<l>::tensor_reduced slhs;slhs=t;\
+  return slhs Op rhs;\
+}
+
+LOGICAL_BINOP(|);
+LOGICAL_BINOP(&);
+LOGICAL_BINOP(||);
+LOGICAL_BINOP(&&);
+
+}
+#endif