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HenriLéon Lebesgue
(28 Jun 1875  26 Jul 1941)
French mathematician who contributed in several fields of mathematics, and developed a theory of integration, now known by his name.

Science Quotes by HenriLéon Lebesgue (1 quote)
In my opinion a mathematician, in so far as he is a mathematician, need not preoccupy himself with philosophy—an opinion, moreover, which has been expressed by many philosophers.
— HenriLéon Lebesgue
In George Edward Martin, The Foundations of Geometry and the NonEuclidean Plane (1982), 19.
Quotes by others about HenriLéon Lebesgue (1)
This new integral of Lebesgue is proving itself a wonderful tool. I might compare it with a modern Krupp gun, so easily does it penetrate barriers which were impregnable.
In 'Current Tendencies of Mathematical Research', Bulletin of the American Mathematical Society (Oct 1916), 23, 7. Previously given as an address read at the Quarter Centennial of the University of Chicago, before a conference of the mathematical, physical and astronomical departments.
See also:
 28 Jun  short biography, births, deaths and events on date of Lebesgue's birth.
 Measure and the Integral, by Henri Léon Lebesgue.  book suggestion.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) 
Carl Sagan
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