Boole, George (1815-1864), a British logician and mathematician, devised a method of expressing logical relationships in terms of algebra, now known as Boolean algebra. His major works were Mathematical Analysis of Logic (1847) and An Investigation of the Laws of Thought (1854). The mathematical theories of logic and probabilities are founded on these works. Boole was born in Lincoln, England, on Nov. 2, 1815. In 1849, he became professor of mathematics at Queen’s College, Cork, Ireland, despite the fact that he did not have a degree. Boole died on Dec. 8, 1864.