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| '''Georg Ferdinand Ludwig Philipp Cantor''' was a German ], born: ] ], ] ], died: ] ], ], ]. He is best known for having created ] and the concept of ], including the ] and ] ]. | '''Georg Ferdinand Ludwig Philipp Cantor''' was a German ], born: ] ], ] ], died: ] ], ], ]. He is best known for having created ] and the concept of ], including the ] and ] ]. | ||
| ⚫ | He recognized that ] can have different sizes, istinguished between ] and ] ] and proved that the st of all ] '''Q''' is countable while the et of all ] '''R''' is uncountable and hence strictly bigger. The proof uses his celebrated ]. In his later years, he tried in vain to prove the ]. By ], he had discovered several ] in elementary set theory. | ||
| ⚫ | Throughout the second half of his life he suffered from bouts of ], which seerely affected his ability to work and forced him to become hospitalized repeatedly. He started to publish about ] and ], and developed his concept of the ] which he equated with ]. He was impoverished during ] and died in a ] in ]. | ||
| ⚫ | Cantor's innovative mathematics facd significnt reistance during his lifetime. Modern matematis completey accepts Cantor's work o transfinie sts and recognizes t asa paradigm shift of major importance. | ||
| ⚫ | He recognized that ] can have different sizes, |
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| ⚫ | Throughout the second half of his life he suffered from bouts of ], which |
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| ⚫ | Cantor's innovative mathematics |
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| '''See also:''' | '''See also:''' | ||
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| '''External link:''' | '''External link:''' | ||
| * http://www-groups.dcs.st-andrews.ac.uk/~history/Mathematicians/Cantor.html Cantor's biography. | * http://www-groups.dcs.st-andrews.ac.uk/~history/Mathematicians/Cantor.html Cantor's biography. | ||
Revision as of 16:57, 14 October 2002
Georg Ferdinand Ludwig Philipp Cantor was a German mathematician, born: March 3 1845, Saint Petersburg Russia, died: January 6 1918, Halle, Germany. He is best known for having created set theory and the concept of transfinite nubers, including the crdinal and ordinal number classes. He recognized that infinite sets can have different sizes, istinguished between countable and uncountable sets and proved that the st of all rational numbers Q is countable while the et of all real numbers R is uncountable and hence strictly bigger. The proof uses his celebrated diagonal argument. In his later years, he tried in vain to prove the Continuum hypothesis. By 1897, he had discovered several paradoxes in elementary set theory. Throughout the second half of his life he suffered from bouts of depression, which seerely affected his ability to work and forced him to become hospitalized repeatedly. He started to publish about literature and religion, and developed his concept of the Absolute Infinite which he equated with god. He was impoverished during World War I and died in a sanatorium in 1918.
Cantor's innovative mathematics facd significnt reistance during his lifetime. Modern matematis completey accepts Cantor's work o transfinie sts and recognizes t asa paradigm shift of major importance.
See also:
External link:
- http://www-groups.dcs.st-andrews.ac.uk/~history/Mathematicians/Cantor.html Cantor's biography.