 The Trisectors by Underwood Dudley Underwood Dudley (born January 6, 1937) is a mathematician, formerly of DePauw University, who has written a number of research works and textbooks but is best known for his popular writing. Most notable are several books describing crank mathematics by people who think they have squared the circle or done other impossible things. That sort of work is thrown away by most professionals, but Dudley has saved and analyzed it, calling it the folklore of mathematics. Image File history File links No higher resolution available. ...
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is the 6th day of the year in the Gregorian calendar. ...
Year 1937 (MCMXXXVII) was a common year starting on Friday (link will display the full calendar) of the Gregorian calendar. ...
Leonhard Euler, considered one of the greatest mathematicians of all time A mathematician is a person whose primary area of study and research is the field of mathematics. ...
Articles with similar titles include DePaul University, a school with a similar spelling. ...
Crank is a pejorative term for a person who holds some belief which the vast majority of his contemporaries would consider false, clings to this belief in the face of all counterarguments or evidence presented to him. ...
This square and circle have the same area. ...
These books, which alternate between appreciation and exasperation, include The Trisectors (MAA 1996, ISBN 0-88385-514-3), Mathematical Cranks (MAA 1992, ISBN 0-88385-507-0), and Numerology: Or, What Pythagoras Wrought (MAA 1997, ISBN 0-88385-524-0). They helped him win the Trevor Evans Award for expository writing from the Mathematical Association of America (MAA) in 1996. Dudley has also written and edited straightforward mathematical works such as Readings for Calculus (MAA 1993, ISBN 0-88385-087-7) and Elementary Number Theory (W.H. Freeman 1978, ISBN 0-7167-0076-X). The Mathematical Association of America (MAA) is a professional society that focuses on undergraduate mathematics education. ...
Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ...
Dudley is a native of New York City. He received bachelor's and master's degrees from the Carnegie Institute of Technology and a Ph.D. from the University of Michigan. His academic career consisted of two years at Ohio State University followed by thirty-seven at DePauw University, from which he retired in 2004. He has edited the College Mathematics Journal and the Pi Mu Epsilon Journal, and was a Polya Lecturer for the MAA for two years. New York, New York and NYC redirect here. ...
A bachelors degree is usually an undergraduate academic degree awarded for a course or major that generally lasts for three, four, or in some cases and countries, five or six years. ...
This article does not cite any references or sources. ...
The Carnegie Institute of Technology (Carnegie Tech), the predecessor to Carnegie Mellon University, was founded in 1900 by Andrew Carnegie as the Carnegie Technical Schools. ...
Doctor of Philosophy (Ph. ...
The University of Michigan, Ann Arbor (U of M, U-M or simply Michigan) is a coeducational public research university in the state of Michigan, and one of the foremost universities in the United States. ...
The Ohio State University (OSU) is a coeducational public research university in the state of Ohio. ...
Lawsuit In 1995, Dudley was one of several people sued by William Dilworth for defamation because Mathematical Cranks included an analysis of Dilworth's "A correction in set theory," an attempted refutation of Cantor's diagonal method. The suit was dismissed in 1996 due to failure to state a claim. In English and American law, and systems based on them, libel and slander are two forms of defamation (or defamation of character), which is the tort or delict of making a false statement of fact that injures someones reputation. ...
Cantors diagonal argument, also called the diagonalisation argument, the diagonal slash argument or the diagonal method, was published in 1891 by Georg Cantor as a proof that there are infinite sets which cannot be put into one-to-one correspondence with the infinite set of natural numbers. ...
The dismissal was upheld on appeal in a decision written by Richard Posner. From the decision: "A crank is a person inexplicably obsessed by an obviously unsound idea--a person with a bee in his bonnet. To call a person a crank is to say that because of some quirk of temperament he is wasting his time pursuing a line of thought that is plainly without merit or promise. ... To call a person a crank is basically just a colorful and insulting way of expressing disagreement with his master idea, and it therefore belongs to the language of controversy rather than to the language of defamation." Richard A. Posner Richard Allen Posner (born January 11, 1939 in New York City) is currently a judge on the United States Court of Appeals for the Seventh Circuit. ...
See also Pseudomathematics is a form of mathematics-like activity that does not work within the framework, definitions, rules, or rigor of formal mathematical models. ...
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