Teorema de Niven (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Teorema de Niven" in Spanish language version.

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ams.org

Niven, Ivan (1956). Irrational Numbers. The Carus Mathematical Monographs (11). Mathematical Association of America. p. 41. MR 0080123.
Una prueba para el caso del coseno aparece en el Lema 12 en Bennett, Curtis D.; Glass, A. M. W.; Székely, Gábor J. (2004). «Fermat's last theorem for rational exponents». American Mathematical Monthly 111 (4): 322-329. MR 2057186. doi:10.2307/4145241.

archive.org

Niven, Ivan (1956). Irrational Numbers. The Carus Mathematical Monographs (11). Mathematical Association of America. p. 41. MR 0080123.

doi.org

dx.doi.org

Una prueba para el caso del coseno aparece en el Lema 12 en Bennett, Curtis D.; Glass, A. M. W.; Székely, Gábor J. (2004). «Fermat's last theorem for rational exponents». American Mathematical Monthly 111 (4): 322-329. MR 2057186. doi:10.2307/4145241.

jstor.org

Schaumberger, Norman (1974). «A Classroom Theorem on Trigonometric Irrationalities». Two-Year College Mathematics Journal 5: 73-76. JSTOR 3026991.