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partly the Greek and Latin authors, partly the
Mohammedan (MSS. Berlin, No. 49; Brit. Mus. 27,107 A; Paris, 1031, 5; St. Petersburg, 343, 344, 345, 346); "Perush Luḥot Paras," a commentary written in 1425 on the astronomical tables of Yezdegerd, tables already treated of by Solomon b. Elijah Sharbiṭ ha-Zahab (MSS. Paris, Nos. 1084, 1085; St. Petersburg, 359); glosses to Euclid (MS. Günzburg, No. 340, 5); an essay upon the construction of the astrolabe, "Tiḳḳun Keli ha-Neḥoshet," as a complement to the Hebrew works on the subject, which he found to be superficial; an essay (1462) upon the construction of the astronomical instrument ("Al-Ẓafiḥah") invented by
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110:
Mordecai was a teacher of mathematics, and did much to advance the study of the exact sciences in Turkey. In his commentaries to Ibn Ezra he has often occasion to touch upon such subjects. His chief works in this branch are: a treatise in two parts on arithmetic and geometry, in which he follows
115:, written at the request of his pupil Menahem (MSS. Munich, No. 36, 13; Paris, 1030, 5; St. Petersburg, 353); an essay upon the construction of an instrument for measuring time (sun dial), which can be made in two different ways (MS. St. Petersburg, No. 361).
95:("Hassagot," c. 1460), which attack Mordecai answered in his "Teshubot Hassagot" (Steinschneider, "Cat. Codicum Hebr. Bibl. Acad. Lugduno-Batavæ," pp. 202–207). He also wrote commentaries to Ibn Ezra's treatises "Yesod Morah" (dedicated to his pupil
87:(MSS. Paris, Nos. 265, 266; St. Petersburg, No. 51), in the preface to which he speaks of his researches in grammar, logic, physics, astronomy, arithmetic, geometry, and metaphysics. This commentary, in which he especially criticized
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Most of his works have come down in manuscript, selections from which have been published by
Gurland, in his "Ginze," part iii., 1866. The scientific bent of his mind is shown in his commentary to the
42:
The earliest date attached to any of his writings is 1425. The form of his family name is doubtful, and has been transcribed by modern scholars as "Comtino." Mordecai's biographer,
46:, uses the form "Kumatyano," a name which he found still in use in Turkey (Geiger, in "Wiss. Zeit. Jüd. Theol." iii.445; idem, "Melo-Chofnajim," p. 13). He was the pupil of
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50:, a distinguished Talmudist, known for his cultivation of the sciences and his tolerance toward the
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74:. Though an opponent of their teachings, Mordecai was held in honor by the Karaites, two of his
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being included in their Siddur (Landshut, "'Ammude ha-'Abodah," p. 200).
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204: This article incorporates text from a publication now in the
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99:), "Sefer ha-Shem," and "Sefer ha-Eḥad" (MS. Paris, No. 661; compare
36:
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103:, "Cat. Bodl. Hebr. MSS." col. 436), and a commentary to
35:; died in the latter city between 1485 and 1490) was a
210:Richard Gotthell & Israel Berlin (1901–1906).
107:'s "Millot ha-Higgayon," printed in Warsaw, 1865.
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264:15th-century writers from the Ottoman Empire
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62:Mordecai was the teacher not only of
131:iii, Mordecai Kumatyano (in Russian)
249:Astronomers from the Ottoman Empire
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274:Jews in the medieval Islamic world
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224:. New York: Funk & Wagnalls.
199:
212:"Comtino, Mordecai ben Eliezer"
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93:Shabbethai ben Malchiel Kohen
279:Jews from the Ottoman Empire
17:Mordecai ben Eliezer Comtino
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254:15th-century mathematicians
244:Medieval Jewish astronomers
138:pp. 1–34 (popular ed.)
66:, but also of the Karaites
10:
300:
194:Jüdisches Literaturblatt,
259:15th-century astronomers
146:Bibliotheca Mathematica,
269:Medieval Jewish writers
221:The Jewish Encyclopedia
177:Toledot Gedole Yisrael,
163:Gesch. des Karäerthums,
155:pp. 435, 593, 630.
218:; et al. (eds.).
142:Moritz Steinschneider
189:viii.290 and note 6;
125:Jonah Hayyim Gurland
44:Jonah Hayyim Gurland
239:15th-century deaths
91:, was attacked by
284:15th-century Jews
173:Mordecai Ghirondi
148:1901, p. 63;
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89:Abraham ibn Ezra
72:Caleb Afendopolo
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216:Singer, Isidore
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165:ii.297 et seq.;
129:Gincz Yisra'el,
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68:Elijah Bashyaẓi
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58:Life and career
39:and scientist.
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169:Graziadio Nepi
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101:Adolf Neubauer
97:Joseph Rachizi
64:Elijah Mizraḥi
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33:Constantinople
25:מרדכי כומטיאנו
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179:p. 260;
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159:Julius Fürst
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27:; lived at
233:Categories
136:Talpiyyot,
119:References
113:Al-Zarkala
105:Maimonides
84:Pentateuch
29:Adrianople
196:xxiii.176
134:idem, in
37:Talmudist
76:piyyuṭim
52:Karaites
208::
187:Gesch.
151:idem,
21:Hebrew
214:. In
144:, in
70:and
31:and
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185:,
175:,
161:,
127:,
54:.
23::
171:-
19:(
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