MULL, George (Boole George)( English mathematician.)
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Biography MULL, George (Boole George)
Born November 2, 1815 in Lincoln. At age 16, became an assistant teacher of a private school in Doncaster, in 1835 opened his own school in Lincoln. In his spare time reading mathematical journals, the work of Isaac Newton, P. Laplace and Jean-L.Lagranzha, began to conduct independent study algebraic. In 1839 wrote the first scientific studies on the theory of analytic transformations (Researches on the Theory of Analytical Transformations), which was published 'Cambridge Mathematical Journal' ( 'Cambridge Mathematical Journal'). In 1844 came his first work, . where it was suggested combining algebra and logic, . and in 1847 published a paper Mathematical analysis of logic (The Mathematical Analysis of Logic), . which initiated the creation of 'propositional algebra', . which subsequently received the name of the Boolean algebra,
. Through this publication in 1849 Boole was appointed professor of mathematics at Queens College (Cork, Ireland), where he taught until the end of life. In 1857 he was elected a member of the Royal Society of London. The main ideas are summarized in Boole's work study the laws of thought, . which are based on mathematical theories of logic and probabilities (An Investigation of the Laws of Thought, . on Which Are Founded the Mathematical Theories of Logic and Probabilities, . 1854),
. Here is the first time explicitly defined calculus classes (or sets), the notation for their intersection, union, etc., it is shown that the calculus of classes can be interpreted as a propositional calculus. Boolean algebra - the special algebraic systems, which are defined two operations - have found wide application in various areas of mathematics: probability theory, topology, functional analysis, as well as in the creation of computer. Boule died in Ballintemple (County Cork, Ireland), December 8, 1864.