This is a slightly more rigorous restatement of concepts introduced in Chapter 3, Lesson 6 . If you need to refresh your memory, this would be a good time to go back and review the examples in that short passage. This means that a binding is created for a special variable as a result of executing some form in your program. However, the added declaration adds redundant documentation at the point of use of the special variable. This book may not be reproduced without the written consent of its author.
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