21. DE MORGAN, Augustus., An Essay On Probabilities And On Their Application To Life Rachel Lee Rare Books (formerly Thoemmes). de morgan, augustus. An Essay on Probabilitiesand on their application to Life Contingencies and Insurance Offices. http://www.polybiblio.com/tabooks/BOOKS055584.html

Rachel Lee Rare Books (formerly Thoemmes) DE MORGAN, Augustus. Small 8vo: engraved title-page with vignette, xviii, 306, xl pp; untrimmed and partly unopened. Original brown cloth, gilt lettering to spine, slightly frayed at top and bottom of spine, otherwise a good copy. First edition. "De Morgan's conception of probability was largely derived from Laplace, whose ideas (and errors) he was thus instrumental in propagating among his nineteenth-century successors. His method of approach was to construe the theory as an extension of formal logic, that is, as an investigation of the rules whereby propositions not absolutely certain affect the certainty of other propositions with which they are connected." P.L. Heath in "The Encyclopedia of Philosophy". " .... the theory of probabilities, I take to be the unknown God which the schoolmen ignorantly worshipped." (De Morgan in "Formal Logic", 1847). Goldsmiths' 30437. This item is listed on Bibliopoly by Rachel Lee Rare Books (formerly Thoemmes) ; click here for further details.

22. De Morgan, Augustus., "Methods Of Integrating Partial Differential Equations." A Michael R. Thompson Bookseller. de morgan, augustus. Methods of IntegratingPartial Differential Equations. Author's offprint from http://www.polybiblio.com/mrtbksla/8027.html

Michael R. Thompson Bookseller De Morgan, Augustus. "Methods of Integrating Partial Differential Equations." Author's offprint from Transactions of the Cambridge Philosophical Society, Volume 8, Part. 5. Cambridge: Parker, 1848 Quarto., [2, blank], 10 pp., Disbound., Outer leaves soiled. Two holes punched at left margin for insertion into a binder. A good copy. Protected in a special offprint envelope/folder. First separate edition., De Morgan's (1806-71) name is usually associated with his work in symbolic logic. However, he made influential contributions to many fields of mathematics, including geometry and differential equations. In this paper De Morgan demonstrates his keen interests in computational methods. Building on an old method by Legendre, he proposes two new approaches to solving partial differential equations, using an intricate change of variables. Volumes of the Transactions of the Cambridge Philosophical Society, where De Morgan published most of his logical papers, are very rare. Separate authors' offprints from this publication are hardly ever seen. This item is listed on Bibliopoly by Michael R. Thompson Bookseller

23. De Morgan, Augustus de morgan, augustus (18061871). British mathematician who initiated anddeveloped a theory of relations in logic. He devised a symbolism http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/D/DeMorgan/1.htm

De Morgan, Augustus British mathematician who initiated and developed a theory of relations in logic. He devised a symbolism that could express such notions as the contradictory, the converse, and the transitivity of a relation, as well as the union of two relations. De Morgan was born in Madura (now Madurai), Tamil Nadu, India, and studied at Cambridge. He was the first professor of mathematics at University College, London, 1828-58. In his books Formal Logic 1847 and Syllabus of a Proposed System of Logic, De Morgan developed a logic of noun expressions. He also extended his syllogistic vocabulary using definitions, giving rise to new kinds of inferences, both direct (involving one premise) and indirect (involving two premises). He was thus able to work out purely structural rules for transforming a premise or pair of premises into a valid conclusion.

24. Encyclopædia Britannica Encyclopædia Britannica, de morgan, augustus Encyclopædia Britannica Article. MLAstyle de morgan, augustus. 2003 Encyclopædia Britannica Premium Service. http://www.britannica.com/eb/article?eu=30085

25. Athenaeum Index: Contributor Record. Contributor de morgan, augustus. Research Notes See de morgan, augustus? for reviews probably attributable to this contributor. http://www.soi.city.ac.uk/~asp/v2/contributors/contributorfiles/DEMORGAN,Augustu

Contributor: DE MORGAN, Augustus Biographical Details: Dates: Source of Characteristics: DNB Characteristics: Professor of Mathematics at University College, London Source of Characteristics: Athenaeum Characteristics: Contributed on a wide range of subjects, including astronomy, mathematics (especially geometry), science, religion, the history of science, philosophy, enyclopaedias and medicine. Research Notes: See DE MORGAN, Augustus ? for reviews probably attributable to this contributor. Research Notes: Obituary published in the Athenaeum, March 25 1871. Mark: DE MORGAN Add your annotation to this record. The following reviews have been identified as being written by this contributor: 1859. - Memoir of the Life and Labours of the Rev. Jeremiah Horrox 2198 (December 11,1869) 1869. - The Transit of Venus across the Sun 2198 (December 11,1869) The ABC of Thought 1787 (January 25,1862) Abstract Log, for the Use of American Navigations 1132 (July 7,1849) Academic Reform and University Representation 1713 (August 25,1860) An Account of the Aurora Borealis seen near Cambridge, October 24, 1837

26. Athenaeum Index: Contributor Record. Contributor de morgan, augustus ? Biographical details Research Notes Pleasesee de morgan, augustus for complete biographical details. Mark de morgan? http://www.soi.city.ac.uk/~asp/v2/contributors/contributorfiles/DEMORGAN,Augustu

Contributor: DE MORGAN, Augustus ? Biographical Details: Research Notes: Please see DE MORGAN, Augustus for complete biographical details. Mark: DE MORGAN? (Illegible) Add your annotation to this record. The following reviews have been identified as being written by this contributor: An Inquiry into the Nature of Induction 1061 (February 26,1848) On the Heat of Vapour, and on Atmospherical Refractions 694 (February 13,1841) The Syllogism considered as an Analysis of the Reasoning Process 1061 (February 26,1848) Main Page Search Screen Browse Menu Bulletin Board ... Help

27. De Morgan, Augustus de morgan, augustus (1806.6.27~1871.3.18). http://woosuk.woosuk.ac.kr/~mathedu/mathematics5/mathe016.htm

28. De Morgan, Augustus de morgan, augustus 180671, English mathematician and logician, b. India. demorgan, augustus. 1806-71, English mathematician and logician, b. India. http://www.slider.com/enc/15000/De_Morgan_Augustus.htm

Oil Lamp Home Encyclopeadia D Dav - De ... Rope Ladders Trellian WebPage Slider Search: The Web Encyclopaedia Shopping Index Help Encyclopaedia De Morgan, Augustus 1806-71, English mathematician and logician, b. India. A noted teacher, he was professor of mathematics (1828-31, 1836-66) at University College (now part of the Univ. of London) and a founder and first president (1865) of the London Mathematical Society. Known as a reformer of logic, he developed a new logic of relations that he summarized in Syllabus of a Proposed System of Logic (1860). His works include An Essay on Probabilities Formal Logic Trigonometry and Double Algebra (1849), and A Budget of Paradoxes Add URL Advertise Contact Us Rope Ladder

29. DE MORGAN, Augustus, Autographs, Manuscripts, Letters, Documents de morgan, augustus, (18061871). Mathematician. Autograph Letter Signed toan unnamed correspondent, 1 page 8vo, 91 Adelaide Road, 7 September 1865. http://www.manuscripts.co.uk/stock/6047.HTM

Restart site DE MORGAN, Augustus (1806-1871). Mathematician. Autograph Letter Signed to an unnamed correspondent, 1 page 8vo, 91 Adelaide Road, 7 September 1865. Thanking him for his note which will aid him 'in some supplementary matter which I have appended to the Budget'. [No: 6047] back to index John Wilson Manuscripts Limited, Painswick Lawn, 7 Painswick Road, CHELTENHAM GL50 2EZ, UK Tel: +44(0)1242 580344 Fax: +44(0)1242 580355

30. De Morgan, Augustus encyclopediaEncyclopedia de morgan, augustus, du môr'gun Pronunciation Key.de morgan, augustus , 1806–71, English mathematician and logician, b. India. http://www.infoplease.com/ce6/people/A0815137.html

The # 1 wireless color security cam! Ultimate home movie ! Genuine Indian and Asian astrology reports and consultations by reputed Vedic Astrologers. Step-by-step guide to finding money for a growing business All Infoplease All Almanacs General Entertainment Sports Biographies Dictionary Encyclopedia Infoplease Home Almanacs Atlas Dictionary ... Fact Monster Kids' reference Info:Daily Fun facts Homework Center Newsletter You've got info! Help Site Map Visit related sites from: Family Education Network Encyclopedia De Morgan, Augustus [d u u n] Pronunciation Key De Morgan, Augustus Syllabus of a Proposed System of Logic (1860). His works include An Essay on Probabilities Formal Logic Trigonometry and Double Algebra (1849), and A Budget of Paradoxes demonetization De Morgan, William Frend Search Infoplease Info search tips Search Biographies Bio search tips About Us Contact Us Link to Infoplease ... Privacy

31. De Morgan, Augustus Translate this page de morgan, augustus Matematico inglese (18061871), autore tra l'altro del teoremadi de M . Tutorial (NOTA questo link esce dall'indice). Disk utility. http://www.macopoli.com/Indice_gen/D/Disk_utility.htm

Disk utility Indietro Scheda

32. De Morgan, Augustus encyclopediaEncyclopedia de morgan, augustus, du môr'gun Pronunciation Key.de morgan, augustus , 1806–71, English mathematician and logician, b. India. http://www.factmonster.com/ce6/people/A0815137.html

Encyclopedia De Morgan, Augustus [d u u n] Pronunciation Key De Morgan, Augustus Syllabus of a Proposed System of Logic (1860). His works include An Essay on Probabilities Formal Logic Trigonometry and Double Algebra (1849), and A Budget of Paradoxes demonetization De Morgan, William Frend AD AD AD AD AD Print this page Cite this page Awards and Press Link to Fact Monster Add Fact Monster search ... Privacy

33. New Page 2 1 tidal letter from. de morgan, augustus (18061871), mathematician, was bornat Madura, in the Madras presidency. de morgan was sent to various schools. http://home.bt-webworld.com/tides/ebdg.htm

Dayman to Gutch Back Dayman, Joseph Lieutenant.1f Dean, Edward, of Macclesfield. 1 tidal letter from. de Morgan, Augustus (1806-1871), mathematician, was born at Madura, in the Madras presidency. De Morgan was sent to various schools. He had a gift for drawing caricatures, and read algebra ‘like a novel.’ He pricked out equations on the school-pew, some of which remained after his death, instead of listening to the sermon. In February 1823 he entered Trinity College, Cambridge, as a ‘bye-term man.’ He made many friends at college, including his teachers, Whewell and Peacock. He belonged to a musical society called the ‘Camus’ (i.e. Cambridge Amateur Musical Union Society), and was a skilful flute-player. After some thoughts of medicine he resolved to go to the bar, and entered Lincoln's Inn. The university of London, which afterwards became University College, was just being started. De Morgan found law unpalatable, and on 23 Feb. 1828 was unanimously elected the first professor of mathematics, although the youngest applicant, on the strength of very high testimonials from Peacock, Airy, and other Cambridge authorities. He gave his introductory lecture, ‘On the Study of Mathematics,’ 5 Nov. 1828. From the first De Morgan was a most energetic worker. In May 1828 he was elected a fellow of the Astronomical Society, and in 1830 was placed on the council. He became a member of the Society for the Diffusion of Useful Knowledge, founded by Brougham and others in 1826. He became a member of the committee in 1843. The society was dissolved in 1846. In the vacation of 1837 De Morgan married Sophia Elizabeth Frend, and settled at 69 Gower Street. His lectures at University College attracted many men, afterwards distinguished. He had the power of clear exposition. He never became a fellow of the Royal Society, and held that it was too much open to social influences to be thoroughly efficient as a working institution. His dislike to honorary titles led him to refuse the offer of the LL.D. degree from Edinburgh. For many years he did his best to promote the adoption of a decimal coinage.

34. AIM25: University College London: De Morgan Papers (MS ADD 163) Name of creator(s) morgan augustus de 18061871 mathematician morgan Sophia Elizabeth de fl 1836 née Frend wife of augustus de morgan. http://www.aim25.ac.uk/cats/13/4161.htm

University College London: home page ARCHON : Contact details De Morgan Papers (MS ADD 163) IDENTITY STATEMENT Reference code(s) : GB 0103 MS ADD 163 Held at : University College London Title: De Morgan Papers (MS ADD 163) Date(s) Level of description : Collection (fonds) Extent : 1 folder Name of creator(s) CONTEXT Administrative/Biographical history CONTENT Scope and content/abstract : Correspondence between De Morgan and Sophia Frend (two items), 1836 and undated; letter from De Morgan to Sir Jonathan Pollock, 1865; miscellaneous undated verses. ACCESS AND USE Language/scripts of material : English System of arrangement Conditions governing access : Open. Conditions governing reproduction Finding aids : Collection level description. ARCHIVAL INFORMATION Archival history Immediate source of acquisition : Found in the Library at University College London in April 1969. ALLIED MATERIALS Related material Athenaeum DESCRIPTION NOTES Archivist's note : Source: National Register of Archives. Date(s) of descriptions : 1999, revised Aug 2001 INDEX ENTRIES Subjects Mathematicians Scientists Scientific personnel Poetry ... Literary forms and genres Personal names Corporate names Places

35. AIM25: University Of London (Library - Senate House): DE MORGAN, Family Extent 6 boxes. Name of creator(s) de morgan family. CONTEXT. Administrative/Biographicalhistory augustus de morgan was born at Madura, India in 1806. http://www.aim25.ac.uk/cgi-bin/search2?coll_id=1748&inst_id=14

36. DeMorgan_Note gallery index. augustus de morgan. British logician and mathematician. Boole andhe invented symbolic logic, ie logic expressed in terms of algebraic operations. http://www.bun.kyoto-u.ac.jp/phisci/Gallery/deMorgan_note.html

Augustus de Morgan British logician and mathematician. Boole and he invented symbolic logic, i.e. logic expressed in terms of algebraic operations. In addition, he was a powerful advocate of the Laplacian method of inverse probability in the Britain; thus his work on probability theory and his analysis of scientific inference by means of probability theory are also important. His name is associated with various miscellaneous problems. One of them is the famous "Four Color Problem": four colors are sufficient for distinguishing each area from any adjacent area by a different color from each other, on any map (this is a sloppy formulation, but a precise one can be given!). One day in October 1852, a student asked de Morgan whether this problem can be solved, and de Morgan in turn asked William Rowan Hamilton, a boss mathematician of the day in the Britain. Thus a long struggle with this problem began, and it was solved by K. Appel and W. Haken in 1976, by employing large computers at the University of Illinois.

37. Morgan Translate this page morgan augustus de- anglais, 1806-1871 Précurseur de la logique formelleet propositionnelle, que Leibniz désirait tant mettre en oeuvre. http://www.sciences-en-ligne.com/momo/chronomath/chrono1/Morgan.html

MORGAN Augustus De- anglais, 1806-1871 Leibniz Boole Peirce Deux lois usuelles de De Morgan (logique propositionnelle) non (A ou B) = (nonA) et (non B) non (A et B) = (non A) ou (non B) Le ou est ici inclusif : il contient le et ensembles Cantor Le ou exclusif ou bien implication Frege , est celle de Bourbaki) : ou B) vrai S'il pleut, je prendrai mon parapluie A B A et B A ou B non A non B A B (non A) ou B V V V V F F V V V F F V F V F F F V F V V F V V F F F F V V V V a/b Oresme Leibniz x Hamilton Listing

38. VEDA HLAVNÍ STRÁNKA, 21.8. MATEMATIKOVÉ V HISTORII augustus de morgan Jirí Svršeknarozen 26. augustus de morgan krátce po narození oslepl na pravé oko. http://pes.eunet.cz/veda/clanky/14757_0_0_0.html

NEVIDITELNÝ PES EUROPE'S ZVÍØETNÍK BYDLENÍ ... ENCYKLOPEDIE Úterý 21.8.2001 Svátek má Johana Biologie a pøíroda Vesmír Fyzika Medicína ... Archiv vydání Nadpis Autor Text èlánku Alena Marešová Neviditelný pes již pøed èasem uveøejnil dotazník paní doktorky Marešové z Institutu pro kriminologii a sociální prevenci v Praze, týkající se extremismu. Nyní vás znovu prosí o pomoc. Institut pro kriminologii a sociální prevenci se t.è. zabývá trestnou èinností policistù - jejími pøíèinami, nezbytnými podmínkami její existence a možnostmi její redukce. Dílèím úkolem je zjištìní, jak v souèasnosti policii a policisty vnímá veøejnost a odborná veøejnost. Ze zkušených pracovníkù justice a policie byl vytvoøen soubor expertù, jejichž názory budou zpracovány a interpretovány zvl᚝ .Vzhledem k vynikajícím zkušenostem ze sbìru názorù prostøednictvím dotazníkù pøedložených internetové èásti veøejnosti, také v tomto pøípadì jsem zpracovala krátký dotazník a prosím uživatele internetu o jeho vyplnìní. Pro zájemce uvádím program 43. semináøe Spoleènosti pro talent a nadání - ECHA:

39. VEDA 21.8. MATEMATIKOVÉ V HISTORII augustus de morgan Jirí Svršek narozen26. augustus de morgan krátce po narození oslepl na pravé oko. http://pes.eunet.cz/veda/clanky/14757_48_0_0.html

NEVIDITELNÝ PES EUROPE'S ZVÍØETNÍK BYDLENÍ ... ENCYKLOPEDIE Úterý 21.8.2001 Svátek má Johana Biologie a pøíroda Vesmír Fyzika Medicína ... Archiv vydání Nadpis Autor Text èlánku Alena Marešová Neviditelný pes již pøed èasem uveøejnil dotazník paní doktorky Marešové z Institutu pro kriminologii a sociální prevenci v Praze, týkající se extremismu. Nyní vás znovu prosí o pomoc. Institut pro kriminologii a sociální prevenci se t.è. zabývá trestnou èinností policistù - jejími pøíèinami, nezbytnými podmínkami její existence a možnostmi její redukce. Dílèím úkolem je zjištìní, jak v souèasnosti policii a policisty vnímá veøejnost a odborná veøejnost. Ze zkušených pracovníkù justice a policie byl vytvoøen soubor expertù, jejichž názory budou zpracovány a interpretovány zvl᚝ .Vzhledem k vynikajícím zkušenostem ze sbìru názorù prostøednictvím dotazníkù pøedložených internetové èásti veøejnosti, také v tomto pøípadì jsem zpracovala krátký dotazník a prosím uživatele internetu o jeho vyplnìní. Pro zájemce uvádím program 43. semináøe Spoleènosti pro talent a nadání - ECHA:

40. An Eye For Method: Augustus De Morgan And Mathematical Education Paradigm, Number 9 (December, 1992) An eye for method augustus DeMorgan and mathematical education. I. GrattanGuinness. 43, St. http://w4.ed.uiuc.edu/faculty/westbury/Paradigm/grattan_guiness.html

Paradigm , Number 9 (December, 1992) An eye for method: Augustus De Morgan and mathematical education I. Grattan-Guinness We know that mathematicians care no more for logic than logicians for mathematics. The two eyes of exact science are mathematics and logic, the mathematical sect puts out the logical eye, the logical sect puts out the mathematical eye; each believing that it sees better with one eye than with two. This quotation, from De Morgan in 1868, shows him at his best, The point made is surprising but profoundly true, both in his time and still in ours; he is one of the few to have worked in both disciplines, so that the statement is self-referential; and it is so again in a personal way, for he himself had sight in only one eye, so that his wit shines especially strongly here. In this paper a brief survey of his career and achievement is followed by somewhat more detailed remarks on his contribution, via both mathematics and logic, to mathematical education. He passed his entire career there, broken only by a resignation for five years from 1831 as a protest against administrative practices. He resigned again in 1866 (five years before his death), to be succeeded by his former student T. A. Hirst (1830-1892). His other principal students were W. S. Jevons (1835-1882), best remembered now for his work in economics but then also very well known as a logician; and W. K. Clifford (1845-1879), who obtained the companion chair in applied mathematics at University College in 1874. Little is known, however, about his career and general effectiveness as a teacher.

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