21. Tekiah - My Beliefs About God levi ben gerson, according to author Jeffrey Schein, had very clear ideasabout God and why bad things are allowed to happen to good people. http://www.tekiah.com/bio/beliefs.html

Home Classes Schedule Exercises ... Search Site The first man sinned... for he did not know his own soul. - Rabbi Abrahm Isaac Kook My Beliefs About God Contemplating one's belief in God can literally open up a can of worms. Committing to the existence or non-existence of a higher power forces you to take a stand about many other facets of being alive. In fact, contemplating God creates a snowball effect with regard to one's beliefs about our entire reason for being. I've come to feel God as an energy system that is located on a different plane of existence. We are all a part of that existence, but in that other realm, we are unable to experience anything but pure love. On the earth plane, God challenges us to choose love despite our exposure to numerous other feelings and experiences. God's interference with our everyday activities would only hinder this plan. In fact, if we all began to act more "Godly" here on earth, we may someday bring a more heavenly existence to the denser plane. Encountering a Jewish philosopher with views akin to mine has renewed my interest in Jewish knowledge and ideas. The fact that Ben Gerson invented the instrument that allows astronomers and astrologers (like me) to be able to measure the angular relationship between celestial bodies is just one in a strange line of synchronicities that has led my meandering spiritual quest back to Judaism. Home Classes Schedule Exercises ... About Dina April For more info, contact

22. Lebensdaten Von Mathematikern Translate this page Urbain Jean Joseph (11.3.1811 - 23.9.1877) Levi, Beppo (14.5.1875 - 28.8.1961)Levi, Eugenio Elia (1883 - 1917) levi ben gerson (1288 - 1344) Levi-Civita http://www.mathe.tu-freiberg.de/~hebisch/cafe/lebensdaten.html

Diese Seite ist dem Andenken meines Vaters Otto Hebisch (1917 - 1998) gewidmet. By our fathers and their fathers in some old and distant town from places no one here remembers come the things we've handed down. Marc Cohn Dies ist eine Sammlung, die aus verschiedenen Quellen stammt, u. a. aus Jean Dieudonne, Geschichte der Mathematik, 1700 - 1900, VEB Deutscher Verlag der Wissenschaften, Berlin 1985. Helmut Gericke, Mathematik in Antike und Orient - Mathematik im Abendland, Fourier Verlag, Wiesbaden 1992. Otto Toeplitz, Die Entwicklung der Infinitesimalrechnung, Springer, Berlin 1949. MacTutor History of Mathematics archive A B C ... Z Abbe, Ernst (1840 - 1909) Abel, Niels Henrik (5.8.1802 - 6.4.1829) Abraham bar Hiyya (1070 - 1130) Abraham, Max (1875 - 1922) Abu Kamil, Shuja (um 850 - um 930) Abu'l-Wafa al'Buzjani (940 - 998) Ackermann, Wilhelm (1896 - 1962) Adams, John Couch (5.6.1819 - 21.1.1892) Adams, John Frank (5.11.1930 - 7.1.1989) Adelard von Bath (1075 - 1160) Adler, August (1863 - 1923) Adrain, Robert (1775 - 1843)

23. Yale University Library Naples. Zi +6737. Perush ha Torah. levi ben gerson. 14746. Mantua. Zi +6906. Perushha Torah. Zi +6741. Perush Iyob . levi ben gerson. 1477. Ferrara. Zi 5745. http://www.library.yale.edu/judaica/incunab.html

The Collection / 15th-century Incunabula / 16th-century Hebrew imprints Bibliographies Hebrew Periodicals Micorform Notable New Acquisitions / Texts on CD ROM Yiddish Periodicals Yizkor Books The Judaic Studies Reading Room ... Contact Us 15th-Century Incunabula Below is a list of incunabula in alphabetical order by title. The citation includes title, author, place of publication, year published, and Yale University Library call number. All these incunabula are housed in the Beinecke Rare Book and Manuscript Library. If you have any questions locating the materials, please speak to Nanette Stahl , the Curator of the Judaica Collection To Search This Web Page by Title, Author, or Place of Publication: From "Edit" on the Menu Bar, go to "Find" Type in your search word and hit enter.

24. Doron Zeilberger's 36th Opinion: Written March 5, 1999. Rabbi levi ben gerson, in his prealgebra text (1321), SeferMa'asei Khosev, had about fifty theorems, complete with rigorous proofs. http://www.math.temple.edu/~zeilberg/Opinion36.html

Opinion 36: Don't Ask: What Can The Computer do for ME?, But Rather: What CAN I do for the COMPUTER? By Doron Zeilberger Written: March 5, 1999 Rabbi Levi Ben Gerson, in his pre-algebra text (1321), Sefer Ma'asei Khosev, had about fifty theorems, complete with rigorous proofs. Nowadays, we no longer call them theorems, but rather (routine) algebraic identities. For example, proving (a+b)*c=a*c+b*c took him about half a page, while proving (a-b)*c+a*(b-c)=b*(a-c) took a page and a half, and proving a*(b*c*d)=d*(a*b*c) took him one page. The reason that it took him so long is that while he already had the algebraic concepts, he still was too hung-up on words, and while he used symbols, (denoted by dotted Hebrew letters), he did not quite utilize, systematically, the calculus of algebraic identities. The reason was that he was still in a pre-algebra frame of mind, and it was more than three hundred years later (even after Cardano), that probably Viete started the modern `high-school' algebra. So Levi Ben Gerson had an inkling of the algebraic revolution to come, but still did not go all the way, because we humans are creatures of habit, and he liked proving these deep theorems so much that it did not occur to him to streamline them, and hence kept repeating the same old arguments again and again in long-winded natural language.

25. Segeln/ Der Jakobsstab, Winkelmessinstrument Der Alten Seefahrer Translate this page Die erste bekannte sachkundige Beschreibung stammt vom jüdischen Gelehrtenlevi ben gerson aus Bagnolos in Katalonien (1288-1344). http://www.esys.org/technik/jakobsstab.html

E S EGEL- I NFORMATIONS SYS TEM Der Jakobsstab, Winkelmessinstrument der alten Seefahrer von Manfred Iffland Last update: Donnerstag, 15.3.2001, 06:05:33 Uhr Er beschreibt wie Vasco da Gama in Ostafrika einem Mauren seine Astrolabien zeigt. Astrolabium Quadrant Obwohl der Jakobstab bereits 1433 von Paolo Toscanelli (1397 - 1482) erfolgreich zur Ortsbestimmung eines Kometen verwendet worden war, konnte er sich in der Seefahrt, trotz der erheblichen Vereinfachung im Gebrauch durch Regiomontanus, erst ab dem 16. Jahrhundert durchsetzen. Sextant von Isaak Newton 1699 Der Nachbau eines Jakobstabes von Wilhelm Dorenbusch, ist beim Arbeitskreis Norderney der Wilhelm-Dorenbusch-Sternwarte auf Norderney zu besichtigen. Sail home to ESYS ... [Altavista] [Euroseek] [Allesklar.de] [Yahoo] ... [Hotbot] Page by Peter O.Walter SY ESYS E-Mail:info@esys.org URL of this Page is: http://www.esys.org/technik/jakobsstab.html

26. Untitled Theorem Begin reading Dunham, Chapter 6, Cardano and the Solution of the Cubiclevi ben gerson, from the Maasei Hoshev (Art of the Calculator) Do Burton http://newton.uor.edu/facultyfolder/beery/M245Assignments.html

Mathematics 245 Assignments It is a well-kept secret that doing mathematics really is fun-at least for mathematicians-and I am amazed at how often we use the word "beautiful" to describe work that satisfies us. I am reminded of a remark by a mathematician . . . who was talking with some anthropologists about early human experiments with fire. One anthropologist suggested that these humans were motivated by a desire for better cooking; another thought they were after a dependable source of heat. [The mathematician] said he believed fire came under human control because of their fascination with the flame. I believe that the best mathematicians are fascinated by the flame, and that this is a good thing . . . [b]ecause, fortunately for society, their fascination has, in the end, provided the good cooking and reliable heat we all need. - Phillip A. Griffiths, Director of Institute for Advanced Study Tuesday, Feb. 11 Read: Burton, Section 1.3, Early Number Theory (pages 13-15) Ore, Counting and Recording of Numbers (handout) Various authors on earliest evidences of counting; Egyptian, Mesopotamian, and Chinese mathematics, especially origins of Pythagorean Theorem (handout)

27. Contents Of Current Volumes ARTICLES. 15. BR Goldstein levi ben gerson's Preliminary Remarks for a Theory ofPlanetary Latitudes. 31. JL Mancha levi ben gerson's Star List for 1336. 59. http://www.alephj.huji.ac.il/Contents.htm

The Hebrew University of Jerusalem Aleph Abstracts ARTICLES B.R. Goldstein Levi ben Gerson's Preliminary Remarks for a Theory of Planetary Latitudes J.L. Mancha Levi ben Gerson's Star List for 1336 Francisco Moreno-Carvalho A Newly-Discovered Letter by Galileo Galilei . Contacts Between Galileo and Jacob Rosales (Manoel Bocarro Francês), a Seventeenth-Century Jewish Scientist and Sebastianist Hans Lausch "The Ignorant Hold Back Their Judgement and Await the Conclusions of the Knowing" — Moses Mendelssohn and Other Mathematicians David B Ruderman Some Jewish Responses to Smallpox Prevention in the Late Eighteenth and Early Nineteenth Centuries: A New Perspective on the Modernization of European Jewry David A. Hollinger Why Are Jews Preeminent in Science and Scholarship? The Veblen Thesis Reconsidered DISCUSSION FORUM On Yehuda Liebes’ recent Torat Ha-yesirah sel Sefer Yesirah Y. Tzvi Langermann On the Beginnings of Hebrew Scientific Literature and on Studying History Through “ Maqbilot ” (Parallels) David Shulman Sefer Yesirah and Sanskrit Linguistics Steve Wasserstrom Further Thoughts on the Origins of Sefer Yesirah Brief Communications Tony L vy A Newly-Discovered Partial Hebrew Version of Al-Khwarizmi’s Algebra Ruth Glasner Levi ben Gershom (Gersonides) Cyrill Aslanov Joseph Ibn Kaspi John North Essay Review Some Jewish Contributions to Iberian Astronomy.

28. Welcome To RealOlam.com ! - Jewish Community ISP, Exclusive News And Content Little is known of his life except that he was on friendly t FULLSTORY . levi ben gerson Born 1288 in Bagnols, Gard, France http://www.realolam.com/channels/default.asp?channel=45&linkid=302

29. Welcome To RealOlam.com ! - Jewish Community ISP, Exclusive News And Content levi ben gerson JJO'Connor and EF Robertson, Biographies. Born 1288in Bagnols, Gard, France Died 1344 levi ben gerson wrote Book http://www.realolam.com/channels/default.asp?channel=45&articleid=3743

30. Abteilung Für Mittelalterliche Geschichte, Uni Tübingen: Linksammlung Judentum Pablo de Burgos oder Pablo de Cartagena, levi ben gerson, auch Gersonides http://www.uni-tuebingen.de/mittelalter/links/alllinks5c.htm

Startseite Aktuelles Abteilung Studium ... Uni Tübingen Juden im Mittelalter Das Judentum und die Gilden: Wirtschaft und Konkurrenz im Mittelalter Durften Frauen im Mittelalter zur Thora gerufen werden? Meir von Rothenburg- Der Maharam Leben und Werk des Mosche ben Maimon (Maimonides) ... Was hat Weinbau mit dem Berufsrabbinertum zu tun? Raschi von Troyes und die Thora als Spaten sowie weitere Artikel Beziehungen - Juden und Christen im Mittelalter Einführung zur Geschichte der Juden in Mittel- und Osteuropa mit jeweils Abschnitten zum Mittelalter, Vortragsreihe an der Münchner VHS, von haGalil Der Beitrag der Juden zum städtischen Haushalt des Mittelalters Arbeit aus einem Hauptseminar der HU-Berlin, mit Bibliographie Die Juden im Wirtschaftsleben: Jüdische Geldleihe im 14. Jahrhundert Arbeit aus einem Proseminar der Uni Trier, mit Bibliographie Judenverfolgung während des ersten Kreuzzuges (Beispiel Trier) Arbeit aus einem Proseminar zur Geschichte der Juden im Früh - und Hochmittelalter, Universität Regensburg, mit Bibliographie

31. Der Jakobstab, Winklemessinstrument Der Alten Seefahrer Translate this page auch rückwärts (Bild 4). Die erste bekannte sachkundige Beschreibung stammt vomjüdischen Gelehrten levi ben gerson aus Bagnolos in Katalonien (1288-1344). http://home.t-online.de/home/miffland/jakobstb.htm

Der Jakobstab, Winkelmessinstrument der alten Seefahrer In der Folgezeit entwickelten sich die Maueren/Sarazenen zu hervorragenden Astronomen. So haben noch heute viele Fixsterne arabische Namen (z.B. Benetnasch, Beteigeuze, Schedir). Astrolabium Quadrant Obwohl der Jakobstab bereits 1433 von Paolo Toscanelli (1397 - 1482) erfolgreich zur Ortsbestimmung eines Kometen verwendet worden war, konnte er sich in der Seefahrt, trotz der erheblichen Vereinfachung im Gebrauch durch Regiomontanus, erst ab dem 16. Jahrhundert durchsetzen. Der Nachbau eines Jakobstabes von Wilhelm Dorenbusch, ist beim Arbeitskreis Norderney der Wilhelm-Dorenbusch-Sternwarte auf Norderney zu besichtigen.

32. Gersonides - Wikipedia Rabbi levi ben gerson (Gershon), better known as Gersonides or the Ralbag (1288—1344),was a Jewish philosopher and commentator, was born at Bagnols in http://www.wikipedia.org/wiki/Gersonides

Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk Log in Help Gersonides From Wikipedia, the free encyclopedia. Rabbi Levi ben Gerson (Gershon), better known as Gersonides or the Ralbag (1288—1344), was a Jewish philosopher and commentator, was born at Bagnols in Languedoc, probably in 1288. Biography As in the case of the other medieval Jewish philosophers little is known of his life. His family had been distinguished for piety and exegetical skill, but though he was known in the Jewish community by commentaries on certain books of the Bible , he never seems to have accepted any rabbinical post. Possibly the freedom of his opinions may have put obstacles in the way of his preferment. He is known to have been at Avignon and Orange during his life, and is believed to have died in 1344, though Zacuto asserts that he died at Perpignan in 1370. Works Part of his writings consist of commentaries on the portions of Aristotle then known, or rather of commentaries on the commentaries of Averroes. Some of these are printed in the early Latin editions of Aristotle’s works. His most important treatise, that by which he has a place in the history of philosophy, is entitled "Milhamot Adonai", The Wars of God, and occupied twelve years in composition (1317—1329). A portion of it, containing an elaborate survey of astronomy as known to the Arabs, was translated into Latin in 1342 at the request of Clement VI.

33. Important Message From Doron Zeilberger PA 19122, zeilberg@math.temple.edu, http//www.math.temple.edu/~zeilberg/ WrittenMarch 5, 1999 Revised March 25, 1999 Rabbi levi ben gerson, in his pre http://pauillac.inria.fr/algo/AofA/mailing_list/msg00113.html

ANALYSIS of ALGORITHMS, Bulletin Board Date Prev Date Next Thread Prev Thread Next ... Thread Index Important message from Doron Zeilberger To AofA@pommard.inria.fr Subject Important message from Doron Zeilberger From helmut@cam.wits.ac.za Date: Wed, 7 Apr 1999 09:48:31 GMT +2 Organization: MS, University of the Witwatersrand Priority: normal http://www.math.temple.edu/~zeilberg/ http://www.math.temple.edu/~zeilberg/ http://www.math.temple.edu/~zeilberg/programs.html )., in particular RENE ( http://www.math.temple.edu/~zeilberg/tokhniot/RENE http://www.wits.ac.za/helmut/index.htm Prev by Date: complexite pseudo-diadique Next by Date: Set symmetric difference Prev by thread: complexite pseudo-diadique Next by thread: Set symmetric difference Index(es): Date Thread Date Prev Date Next ... Thread Index

34. 5:1 (Spring 1997) The Physical astronomy of levi ben gerson. levi ben gerson (12881344) was a medievalastronomer who responded in an unusual way to the Ptolemaic tradition. http://www.phil.vt.edu/pos/5-1.htm

5:1 (Spring 1997) The Physical astronomy of Levi ben Gerson Bernard R. Goldstein Almagest , he discovered a new phenomenon of Mars and noticed a serious flaw in Ptolemy’s treatment of the Moon. Calibration Allan Franklin A Twentieth-Century Phlogiston: Constructing Error and Differentiating Domains Douglas Allchin

35. Abraham Ibn Ezra It was Rabbi levi ben gerson, in 1321, who rigorously proved the explicit expressionsfor the binomial coefficients, and even he, almost two hundred years later http://www.geocities.com/Paris/Palais/1067/ibn_ezra02.html

The Planets Are Servants What else can you tell me about this Ibn Ezra? Well, he also knew how to compute the seventh row of what later became to be called Pascal's triangle. The practical problem that inspired these calculations was to find the number of possible planetary conjunctions. As every educated person knows, there are exactly seven planets: Sun, Moon, Mercury, Venus, Mars, Jupiter, and Saturn. Whenever a subset of cardinality larger than one shows up at the same sign, this has great astrological significance. How many such events are possible? Here is a translation, from Hebrew, of the first half of the relevant passage in Ibn Ezra's Sefer HaOlam. He called planets 'servants' ( meshartim ), which perhaps meant servants of God. And the combinations are hundred and twenty. And thus you can know their number. [It is] Known that every calculation that adds from one to any number that one wills, you can obtain by its value [multiplied] by its half together with half of one, and here is an example, we wanted to know what is the sum of the numbers from one to twenty. We will multiply twenty by its half and half of one, and [we get] two hundreds and ten. And now we can start to know how many combinations [involving] two servants. And it is known that the number of servants is seven. And Saturn can combine with six other servants. And six by its half and the half of one is one and twenty. And thus is the number of combinations of twos. [Now] we wanted to know the number of combinations of threes. Here we put Saturn and Jupiter and one of the others, their number is five. We multiply five by two and a half and a half, and get fifteen...

36. Induction In Islamic Mathematics And Medieval European mathematics. The topics covered consisted of Dahshour Egypt, AlKaraji,levi ben gerson (1288-1344), and proposition forty-one. http://public.csusm.edu/public/DJBarskyWebs/330CollageOct03.html

Induction in Islamic Mathematics and Medieval European Mathematics This presentation given today by A.J. Lundgren, after Dr. Barsky's commentary on today in math history, began to generate an overall theme of induction in European mathematics. The topics covered consisted of Dahshour Egypt, Al-Karaji, Levi ben Gerson (1288-1344), and proposition forty-one. Today's discussion actually began with more on Islamic mathematics. In particular, al-Karaji and an inductive argument that deals with a certain arithmetic sequence. He proved the formula for the sum of the integral cubes. What is interesting about al-Karaji's proof, is that he doesn't state a general result for an arbitrary n. His theorem is stated with 10 and works backwards to 1. As we moved to medieval Europe, we learned about Levi ben Gerson. He invented the Jacob Staff which was used to measure the angular separation between heavenly bodies. He dealt with combinatorics in a major work of his, The Art of the Calculator. The most important parts of this are the theorems and their proofs. As we looked at proposition 41, which was the proof of the formula for the sum of the first n integral cubes, we saw that Levi first proves the inductive step, this allows you to move from k to k + 1.

37. Philosophie - Mitglieder Translate this page Veröffentlichungen Die Intellektlehre des levi ben gerson in ihrer Beziehung zurchristlichen Scholastik, Frankfurt / Main, New York, Paris 1991 (Europäische http://www.uni-oldenburg.de/philosophie/mitglieder/möbuß.html

B iographie Geboren am 10.01.1963 in Hannover, Studium der Philosophie und Geschichte in Hannover. V eröffentlichungen Der Begriff der cientia bei Levi ben Gerson, in: Miscellanea Mediaevalia 22 (1994) 653-666. Weiblichkeitsvisionen der Mystikerinnen im Mittelalter, in: Die Krise der Kategorie, hrsg. vom 'Verein sozialwissenschaftliche Forschung und Bildung' , Frankfurt am Main 1994, S. 125-145. Die Erscheinung des Transzendenten, Eilah Delmedigo und der Averroismus der Renaissance, Hannover 1996. Schopenhauer für Anfänger, "Die Welt als Wille und Vorstellung". Eine Lese-Einführung, München 1998. Sartre, Freiburg 2000. A ktuelle Forschungsschwerpunkte jüdische Philosophie des Mittelalters und der Renaissance französische Gegenwartsphilosophie Seitenanfang

38. Ivars Peterson's MathLand The basic formulas for finding permutations and combinations can befound in the writings of levi ben gerson (12881344). There's http://www.maa.org/mathland/mathland_1_20.html

Ivars Peterson's MathLand January 20, 1997 Fragments of the Past The early history of mathematics is like a jigsaw puzzle missing many of its pieces. Historians and mathematicians have been painstakingly filling in the blanks, gradually constructing a richer, more complete story of how and where mathematical thought originated and spread. One period of considerable interest is that between the decline of Greek mathematics, coinciding with the collapse of the western Roman Empire in the fifth century, and the rise of European mathematics in the fifteenth century. Mathematics professor Morris Kline of New York University's Courant Institute of Mathematical Sciences expressed a common view of that period in his 1972 book Mathematical Thought from Ancient to Modern Times . "The Arabs made no significant advance in mathematics," he wrote. "What they did was absorb Greek and Hindu mathematics, preserve it, and ultimately, ... transmit it to Europe." In other words, Islamic scholars did little more than put Greek mathematics into cold storage until Europe was ready to accept it. Historian George G. Joseph challenged that view in his provocative book

39. Ivars Peterson's MathTrek -Square Of The Hypotenuse Around 1320, levi ben gerson (12881344) proved that if powers of 2 and 3 areconsecutive, they must be 8 and 9 (see Medieval Harmony, January 25, 1999). http://www.maa.org/mathland/mathtrek_12_4_00.html

Ivars Peterson's MathTrek December 4, 2000 Zeroing In on Catalan's Conjecture Fermat's last theorem is just one of many examples of innocent-looking problems that can long stymie even the most astute mathematicians. It took about 350 years to prove Fermat's scribbled conjecture, for instance. Now, Preda Mihailescu of the Swiss Federal Institute of Technology in Zurich has proved a theorem that is likely to lead to a solution of Catalan's conjecture, another venerable problem involving relationships among whole numbers. He presents his result in a paper to be published in the Journal of Number Theory. "This is a very important contribution," says mathematician Andrew Granville of the University of Georgia in Athens. Mihailescu's work probably puts the resolution of Catalan's conjecture into the foreseeable future, he notes. Named for Belgian mathematician Eugéne Charles Catalan, the conjecture concerns powers of whole numbers. For example, the sequence of all squares and cubes of whole numbers begins with the integers 4, 8, 9, 16, 25, 27, and 36. In this sequence, 8 (the cube of 2) and 9 (the square of 3) are not only powers but also consecutive whole numbers. In 1844, Catalan asserted that, among all powers of whole numbers, the only pair of consecutive numbers that arises is 8 and 9. His conjecture amounts to a search for whole-number solutions to the equation

40. Die Ausstellung Juden An Der Universität Heidelberg Translate this page Heidelberg 1909. Dissertation. levi ben gerson (1288-1344) war Talmudgelehrter,Mathematiker und Astronom. Nach Maimonides gilt http://wwwnp.tphys.uni-heidelberg.de/Ausstellung/show.cgi?de&B&12&074

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 2     21-40 of 87    Back | 1  | 2  | 3  | 4  | 5  | Next 20