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...dently in 1911 by [[Ejnar Hertzsprung]] and by [[Henry Norris Russell]] in 1913, and represented a major step towards an understanding of [[stellar evoluti Russell's early (1913) versions of the diagram included Maury's giant stars identified by Hertzsp ...

...he term ''Boolean algebra'' was first suggested by [[Henry M. Sheffer]] in 1913,<ref name="Huntington_1933"/> although [[Charles Sanders Peirce]] gave the ...d perfected by Whitehead seems to have been first suggested by Sheffer, in 1913." [[Edward Vermilye Huntington]], "[https://www.ams.org/journals/tran/1933- ...

...Carmichael]] (1913),<ref>{{cite journal | author = Carmichael RD | year = 1913 | title = On the impossibility of certain Diophantine equations and systems ...r,<ref name="Kapferer_1913" >{{cite journal | author = Kapferer H | year = 1913 | title = Beweis des Fermatschen Satzes für die Exponenten 6 und 10 | journ ...

|year=1913 [[Category:1711 introductions]] ...

* In 1913, [[Thomas Hakon Grönwall|Grönwall]] showed that the generalized Riemann hyp ...er 2008, Mazur/Stein 2015, Broughan 2017, and Nahin 2021 give mathematical introductions. Titchmarsh 1986, Ivić 1985, and Karatsuba/Voronin 1992 are advanced [[mono ...