What would you like to read?Search books, authors, genres, shelves, users...
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What would you like to read?Search books, authors, genres, shelves, users...
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4 books
Augustus De Morgan (27 June 1806 – 18 March 1871) was a British mathematician and logician. He is best known for De Morgan's laws, relating logical conjunction, disjunction, and negation, and for coining the term "mathematical induction", the underlying principles of which he formalized. De Morgan's contributions to logic are heavily used in many branches of mathematics, including set theory and probability theory, as well as other related fields such as computer science.
Lagrange , in one of the later years of his life, imagined that he had overcome the difficulty ( of the parallel axiom ). He went so far as to write a paper, which he took with him to the Institute, and began to read it. But in the first paragraph something struck him that he had not observed: he muttered: ' Il faut que j'y songe encore ', and put the paper in his pocket.' [ I must think about it again ].
I am perfectly convinced that I have both seen, and heard in a manner which should make unbelief impossible, things called spiritual which cannot be taken by a rational being to be capable of explanation by imposture, coincidence, or mistake.
Lagrange , in one of the later years of his life, imagined that he had overcome the difficulty ( of the parallel axiom ). He went so far as to write a paper, which he took with him to the Institute, and began to read it. But in the first paragraph something struck him that he had not observed: he muttered: ' Il faut que j'y songe encore ', and put the paper in his pocket.' [ I must think about it again ].
