Template:Are You Sure/October 7: Difference between revisions
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[[File:Derangement 4.png|link=Derangement (nonfiction)|thumb|'''[[Derangement (nonfiction)|Derangement]]''' diagram: All 24 permutations of 4 elements, with highlighting of the 9 derangements.]] | |||
• ... that a '''[[Derangement (nonfiction)|Derangement]]''' is a permutation of the elements of a set such that no element appears in its original position; and that the principle of derangement was first considered by mathematician '''[[Pierre Raymond de Montmort (nonfiction)|Pierre Raymond de Montmort]]''' in 1708, and that he solved it in 1713, as did Nicholas Bernoulli at about the same time? | |||
• ... that mathematician '''[[Olga Taussky-Todd (nonfiction)|Olga Taussky-Todd]]''' (30 August 1906 — 7 October 1995) was hired by a group of German mathematicians to find and correct the many mathematical errors in the works of [[David Hilbert (nonfiction)|David Hilbert]], so that they could be collected into a volume to be presented to Hilbert on his birthday, and that there was only one paper (on the continuum hypothesis) which Taussky-Todd was unable to repair? | • ... that mathematician '''[[Olga Taussky-Todd (nonfiction)|Olga Taussky-Todd]]''' (30 August 1906 — 7 October 1995) was hired by a group of German mathematicians to find and correct the many mathematical errors in the works of [[David Hilbert (nonfiction)|David Hilbert]], so that they could be collected into a volume to be presented to Hilbert on his birthday, and that there was only one paper (on the continuum hypothesis) which Taussky-Todd was unable to repair? | ||
Revision as of 04:11, 7 October 2020
Derangement diagram: All 24 permutations of 4 elements, with highlighting of the 9 derangements.
• ... that a Derangement is a permutation of the elements of a set such that no element appears in its original position; and that the principle of derangement was first considered by mathematician Pierre Raymond de Montmort in 1708, and that he solved it in 1713, as did Nicholas Bernoulli at about the same time?
• ... that mathematician Olga Taussky-Todd (30 August 1906 — 7 October 1995) was hired by a group of German mathematicians to find and correct the many mathematical errors in the works of David Hilbert, so that they could be collected into a volume to be presented to Hilbert on his birthday, and that there was only one paper (on the continuum hypothesis) which Taussky-Todd was unable to repair?