1.3 Document Conventions

In this section, the following terminology is used:

• A sequence is one or more items. For example, a clause body consists of a sequence of expressions. This means that there must be at least one expression.
• A list is any number of items. For example, an argument list can consist of zero, one, or more arguments.If a feature has been added in R13A or later, this is mentioned in the text.