Elementary Geometry for College Students (5th Edition)

Published by Brooks Cole
ISBN 10: 1439047901
ISBN 13: 978-1-43904-790-3

Chapter 1 - Section 1.7 - The Formal Proof of a Theorem - Exercises - Page 53: 10b

Answer

The proven statement of a formal proof can not be cited as a reason in a proof.

Work Step by Step

This should actually be the last STATEMENT of a proof, NOT reason.
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