Abstract
Throughout this chapter,Xdenotes a nonempty set of formal symbols and \(X^{-1}\) denotes the set of formal symbols \({ {x^{-1} | x \epsilon X} }\) . Further, we assume thatX and\(X^{-1}\) are disjoint and write \({X^{\prime} = X \bigsqcup X^{-1}}\)
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© 2012 Steven Roman
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Roman, S. (2012). Free Groups and Presentations. In: Fundamentals of Group Theory. Birkhäuser Boston. https://doi.org/10.1007/978-0-8176-8301-6_12
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DOI: https://doi.org/10.1007/978-0-8176-8301-6_12
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Publisher Name: Birkhäuser Boston
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Online ISBN: 978-0-8176-8301-6
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