Colophon Colophon
ยถEdition First PreTeXt Edition
Website http://bogart.openmathbooks.org/
ยฉ2004 (main text); 2017 (Preface to PreTeXt Edition) Kenneth P. Bogart (main text); Mitchel T. Keller, Oscar Levin, Kent E. Morrison (Preface to PreTeXt Edition)
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 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 โGNU Free Documentation Licenseโ.