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# PreTeXt Sample Book: Abstract Algebra (SAMPLE ONLY)

## ColophonColophon

Cover Design Covers 4 U

Production Editor Vilma Mesa

Edition Annual Edition 2015

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the appendix entitled “GNU Free Documentation License.” All trademarks™ are the registered® marks of their respective owners. An external link 1  is included 2  to test its footnote.

example.com
A second footnote, as well.