Yitzchak Ratner

Yitzchak ben Nechemia Ratner (Hebrew: יצחק בן נחמיה ראטנער‎; 1857, Shklov, Russian Empire — ?) was a nineteenth-century Jewish maskilic mathematician.[1] He wrote mathematical and astronomical articles for various journals, and was the author of Mishpat Emet (1884), a criticism of Lichtenfeld's pamphlets against Slonimski's works.[2] In 1888 he edited a second edition of Slonimski's Yesodei Chokmat ha-Shi'ur on the principles of algebra.

References

Rosenthal, Herman; Warsaw, Isidor (1901–1906). "Ratner, Isaac". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. New York: Funk & Wagnalls.
Ratner, Isaac (1883). Mishpat Emet. OCLC 19152927.

This article incorporates text from a publication now in the public domain: Rosenthal, Herman; Warsaw, Isidor (1901–1906). "Ratner, Isaac". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. New York: Funk & Wagnalls.

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[JE-1] Rosenthal, Herman; Warsaw, Isidor (1901–1906). "Ratner, Isaac". In Singer, Isidore; et al. (eds.). The Jewish Encyclopedia. New York: Funk & Wagnalls.

[2] Ratner, Isaac (1883). Mishpat Emet. OCLC 19152927.