MacTutor
Mathematicians Of The Day
16th June
On this day in 1902, Bertrand Russell wrote to Gottlob Frege to say that in his Grundgesetze der Arithmetik:
On this day in 2003 Google released an Escher doodle (a day early).
... there is just one point where I have encountered a difficulty.The difficulty was the Russell Paradox. Frege responded
... your discovery of the contradiction caused me the greatest surprise and, I would almost say, consternation, since it has shaken the basis on which I intended to build arithmetic.
On this day in 2003 Google released an Escher doodle (a day early).
Click on Ⓟ for a poster.
Born:
- 1640: Jacques Ozanam
- 1839: Julius Petersen Ⓟ
- 1866: James Pierpont Ⓟ
- 1888: Alexander Friedmann Ⓟ
- 1915: John Tukey Ⓟ
Died:
- 1902: Ernst Schröder Ⓟ
- 1910: Julius Weingarten Ⓟ
- 1948: Marcel Brillouin Ⓟ
- 1970: Sydney Chapman Ⓟ
- 1975: Karl Dörge Ⓟ
- 1990: Tom Cowling Ⓟ
- 2001: Alessandro Faedo Ⓟ
- 2004: Herman Goldstine Ⓟ
Quotation of the day
From John Tukey
In a world in which the price of calculation continues to decrease rapidly, but the price of theorem proving continues to hold steady or increase, elementary economics indicates that we ought to spend a larger and larger fraction of our time on calculation.
