Add sections 5.1.1.5 Lambda Operators OData defines two operators that evaluate a boolean expression on a collection of entities or complex type instances. Both must be prepended with a navigation path that identifies a collection. 5.1.1.5.1 any The any operator applies a boolean expression to each member of a collection and evaluates to true if the expression is true for any member of the collection. As a special case the boolean expression may be empty, in which the any operator evaluates to true if the collection is not empty. For example: http://services.odata.org/Northwind/Northwind.svc/Orders?$filter=Order_Details/any(d:d/Quantity gt 10) Returns all Orders that have any Orderlines with a Quantity greater than 10. 5.1.1.5.2 all The all operator applies a boolean expression to each member of a collection and evaluates to true if the expression is true for all members of the collection. For example: http://services.odata.org/Northwind/Northwind.svc/Orders?$filter=Order_Details/all(d:d/Quantity gt 10) Returns all Orders that have only Orderlines with a Quantity greater than 10. Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47861/latest/odata-meeting-20_on-20130110-minutes.html