Topic Progress:

Premises can directly support the main claim in an argument, but they can also support other premises, such as when a piece of evidence provides a reason to believe another premise. In that case, the bottom premise is called a sub-premise. Watch this video to see how to map an argument where premises form a chain of reasoning.

Now that you’re familiar with arguments containing independent premises and sub-premises, try the following exercises to see if you can identify the structure of some real-world arguments.