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Want a book that sounds simple but really, really isn't? Try "A Course in Arithmetic"
https://www.math.purdue.edu/%7Elipman/MA598/Serre-Course%20in%20Arithmetic.pdf
Want a book that sounds simple but really, really isn't? Try "A Course in Arithmetic"
https://www.math.purdue.edu/%7Elipman/MA598/Serre-Course%20in%20Arithmetic.pdf