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 # Dependency properties overview
 
-Windows Presentation Foundation (WPF) provides a set of services that can be used to extend the functionality of a type's [property](/dotnet/standard/base-types/common-type-syste#properties). Collectively, these services are typically referred to as the WPF property system. A property that is backed by the WPF property system is known as a dependency property. This overview describes the WPF property system and the capabilities of a dependency property. This includes how to use existing dependency properties in XAML and in code. This overview also introduces specialized aspects of dependency properties, such as dependency property metadata, and how to create your own dependency property in a custom class.
+Windows Presentation Foundation (WPF) provides a set of services that can be used to extend the functionality of a type's [property](/dotnet/standard/base-types/common-type-system#properties). Collectively, these services are typically referred to as the WPF property system. A property that is backed by the WPF property system is known as a dependency property. This overview describes the WPF property system and the capabilities of a dependency property. This includes how to use existing dependency properties in XAML and in code. This overview also introduces specialized aspects of dependency properties, such as dependency property metadata, and how to create your own dependency property in a custom class.
 
 ## Prerequisites
 This topic assumes that you have some basic knowledge of the .NET type system and object-oriented programming. In order to follow the examples in this topic, you should also understand XAML and know how to write WPF applications. For more information, see [Walkthrough: My first WPF desktop application](../getting-started/walkthrough-my-first-wpf-desktop-application.md).