Life and work[ edit ] Fantastic ducks on 6-inch tile with lustre highlights, Fulham period Born in Gower Street, London, [2] the son of the distinguished mathematician Augustus De Morgan and his wife Sophia Elizabeth Frenda highly educated woman, De Morgan was always supported in his desire to become an artist. At the age of twenty, he entered the Royal Academy schools, but he was swiftly disillusioned with the establishment; then he met Morris, and through him the Pre-Raphaelite circle. Soon De Morgan began experimenting with stained glass, ventured into pottery inand by had shifted his interest wholly to ceramics.

Madura, Madras presidency, India, June ; d. London, England, 18 Marchmathematics. At the age of seven months De Morgan was brought to England, where his family settled first at Worcester and then at Taunton. He attended a succession of private schools at which he acquired a mastery of Latin, Greek, and Hebrew and a strong interest in mathematics before the age of fourteen.

He also acquired an intense dislike for cramming, examinations, and orthodox theology. De Morgan entered Trinity College, Cambridge, in February and placed first in the first-class division in his second year; he was disappointed, however, to graduate only as fourth wrangler in After contemplating a career in either medicine or law, De Morgan successfully applied for the chair of mathematics at the newly formed University College, London, in on the strong recommendation of his former tutors, who included Airy and Peacock.

When, inthe college council dismissed the professor of anatomy without giving reasons, he immediately resigned on principle. He resumed inon the accidental death of his successor, and remained there until a second resignation in While admitting a personal faith in Jesus Christ, he abhorred any suspicion of hypocrisy or sectarianism and on these grounds refused an M.

In he married Sophia Elizabeth Frend, who wrote his biography in De Morgan was never wealthy; and his researches into all branches of knowledge, together with his prolific output of writing, left little time for social or family life. However, he was well known for his humor, range of knowledge, and sweetness of disposition.

In May De Morgan became a fellow of the Astronomical Society; he was elected to the council inserving as secretary —; — He helped to found the London Mathematical Society, becoming its first president and giving the inaugural lecture in He was also an influential member of the Society for the Diffusion of Useful Knowledge from De Morgan was a prolific writer, contributing no fewer than articles onesixth of the total production to the Penny Cyclopaedia and writing regularly for at least fifteen periodicals.

De Morgan exerted a considerable influence on the development of mathematics in the nineteenth century. As a teacher he sought to demonstrate principles rather than techniques; and his pupils, who included Todhunter, Routh, and Sylvester, acquired from him a great love of the subject.

He wrote textbooks on the elements of arithmetic, algebra, trigonometry, calculus, complex numbers, probability, and logic. These books are characterized by meticulous attention to detail, enunciation of fundamental principles, and clear logical presentation.

The same work contains a discussion of infinite series with an original rule to determine convergence precisely when simpler tests fail. He believed that the traditional method of argument using the Aristotelian syllogism was inadequate in reasoning that involved quantity.

As an example De Morgan presented the following argument: He asserted that it was not possible to demonstrate this true argument by means of any of the normally accepted Aristotelian syllogisms.

The first attempt to extend classical logic by means of quantifying the predicate and reformulating logical statements in mathematical terms was made by George Bentham in Boole acknowledged his debt to De Morgan and Hamilton in the preface to his first logical work, The Mathematical Analysis of Logic The Scottish philosopher Sir William Hamilton not to be confused with Sir William Rowan Hamilton worked out a system for quantifying the predicate a short time before De Morgan did and unjustly accused him of plagiarism.

De Morgan invented notations, which he sometimes varied, to describe simple propositions. Objects with certain properties were denoted by capital letters X, Y, Z, He then worked out rules to establish valid syllogistic inferences.

De Morgan was also the first logician to present a logic of relations. In a paper written in he used the notation X. He also presented the idea X. De Morgan was steeped in the history of mathematics.

He wrote biographies of Newton and Halley and published an index of the correspondence of scientific men of the seventeenth century.

He believed that the work of both minor and major mathematicians was essential for an assessment of mathematical development, a principle shown most clearly in his Arithmetical Books A famous English mathematician, de Morgan was one of the first English scientists who investigated the phenomena of Spiritualism and became convinced of its paranormal nature.

He was born in in Madura, Madras, India. Augustus De Morgan (də môr´gən), –71, English mathematician and logician, b. India. India. A noted teacher, he was professor of mathematics (–31, –66) at University College (now part of the Univ.

of London) and a founder and first president () of the London Mathematical Society. Image for Augustus De Morgan (English mathematician and logician). Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields.

Join them; it only takes a minute: Sign up. Synopsis. Mathematician John Venn was born in Hull, England, in A fellow of Caius College, Cambridge, he developed George Boole's symbolic logic, and in his Logic of Chance () worked on.

Biography of Augustus DeMorgan - Augustus DeMorgan was an English mathematician, logician, and bibliographer. He was born in June at Madura, Madras presidency, India and educated at Trinity College, Cambridge in

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de Morgan, Augustus () -- from Eric Weisstein's World of Scientific Biography