Abstract
In this final chapter we go back to the late-eighteenth-century roots of algebraic number theory. Its fathers, Lagrange, Legendre, and Gauss, had none of the algebraic machinery we have used.
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Further Reading
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Trifković, M. (2013). Quadratic Forms. In: Algebraic Theory of Quadratic Numbers. Universitext. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-7717-4_7
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