Q.E.D.: difference between revisions
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# {{alternative form of|en|QED|t=''initialism of'' '''[[quod erat demonstrandum]]'''}} |
# {{alternative form of|en|QED|t=''initialism of'' '''[[quod erat demonstrandum]]'''}} |
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#* {{quote-book|en|author=Benjamin Donn|authorlink=Benjamin Donn|chapter=An Essay on Plane Geometry|title=The Geometrician: Containing Essays on Plane Geometry, and Trigonometry:{{nb...|With the Application to the Solutions of a Variety of Problems, with are of Great Use in Measuring Heights and Distances of Places, Surveying of Counties, Sea-coasts, &c.}}|edition=2nd|location=London|publisher=Sold by [[w:Joseph Johnson (publisher)|J[oseph] Johnson]],{{nb...|in St. Paul’s Church-Yard.}}|year=1775|section=paragraph 59|section=book I (The Introduction)|page=10|pageurl=https://books.google.com/books?id=gKk2AAAAMAAJ&pg=RA1-PA10|oclc=23635601|passage={{smallcaps|Theorem 2}}. ''The Angles'' <math>B</math>, <math>C</math>, ''at the Baſe of an Iſoceles Triangle'' <math>ABC</math>'', are equal to each other; and a Line'' <math>AD</math> ''biſecting the Angle'' <math>BAC</math>, ''divides the Baſe into two equal Parts, and is perpendicular thereto.'' For becauſe the Line <math>AD</math> biſects the <math>\angle A</math>, that is, makes the <math>\angle BAD = \angle CAD</math>, and Side <math>AB</math> is <math>= AC</math>, and <math>AD</math> common to both, the <math>\triangle ABD = \triangle ACD</math>; <math>\angle B = \angle C</math>, and <math>\angle ADB = \angle ADC</math>; <math>\because AD \perp</math> to <math>BC</math>. '''Q. E. D.'''}} |
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#* {{quote-book|en|author=William Dunham|authorlink=William Dunham (mathematician)|chapter=Euler and Analytic Number Theory|title=[[w:Leonhard Euler|Euler]]: The Master of Us All|series=The Dolciani Mathematical Expositions|seriesvolume=22|location=[Washington, D.C.]|publisher={{w|Mathematical Association of America}}|year=1999|page=64|pageurl=https://books.google.com/books?id=x7p4tCPPuXoC&pg=PA64|isbn=978-0-88385-328-3|passage=By Cases 1 and 2, we see that any finite collection of <math>4k - 1</math> primes cannot contain all such primes. Thus there are infinitely many primes of this type. '''Q.E.D.'''}} |
#* {{quote-book|en|author=William Dunham|authorlink=William Dunham (mathematician)|chapter=Euler and Analytic Number Theory|title=[[w:Leonhard Euler|Euler]]: The Master of Us All|series=The Dolciani Mathematical Expositions|seriesvolume=22|location=[Washington, D.C.]|publisher={{w|Mathematical Association of America}}|year=1999|page=64|pageurl=https://books.google.com/books?id=x7p4tCPPuXoC&pg=PA64|isbn=978-0-88385-328-3|passage=By Cases 1 and 2, we see that any finite collection of <math>4k - 1</math> primes cannot contain all such primes. Thus there are infinitely many primes of this type. '''Q.E.D.'''}} |
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#* {{quote-book|en|author=Daniel Waterland|authorlink=Daniel Waterland|chapter=A Second Defence of Some Queries Relating to Dr. Clarke’s Scheme of the Holy Trinity: In Answer to the Country Clergyman’s Reply|title=The Works of the Rev. Daniel Waterland, D.D.{{nb...|formerly Master of Magdalene College, Cambridge, Canon of Windsor, and Archdeacon of Middlesex; now First Collected and Arranged. To which is Prefixed, A Review of the Authors Life and Writings, by William van Mildert, D.D. Lord Bishop of Llandaff.}}|location=Oxford, Oxfordshire|publisher=At the [[w:Oxford University Press|Clarendon Press]]|year=1823|volume=III|section=query III|page=165|pageurl=https://books.google.com/books?id=D4YNAAAAQAAJ&pg=PA165|oclc=957692334|passage=[I]f the Son [of God] be in ''nature'' equal to the Father, he is also equal in ''Godhead'', which is a word expressing ''nature''; and if equal in ''Godhead'', equally God ''supreme''. '''Q. E. D.'''}} |
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===Noun=== |
===Noun=== |
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# {{alternative form of|en|QED|t=some [[fact]] or [[scenario]] that [[prove]]s an [[argument]] or [[proposition]]}} |
# {{alternative form of|en|QED|t=some [[fact]] or [[scenario]] that [[prove]]s an [[argument]] or [[proposition]]}} |
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#* {{quote-journal|en|author=G. D. Yeats|title=Account of Ann Fooks’s Case of Ischuria and Vomiting of Urine|editors=Samuel Fothergill and John Want|journal=The Medical and Physical Journal|location=London|publisher=Published for the proprietors, by J. Adlard,{{nb...|23, Bartholomew-Close, and 39, Duke-Street, Smithfield}}; and sold by J. Souter,{{nb...|No. 1, Paternoster-Row.}}|month=February|year=1814|volume=XXXI, part 2|issue=180|page=122|pageurl=https://books.google.com/books?id=HRAUAAAAQAAJ&pg=PA122|oclc=1051228262|passage=This was exactly the '''Q. E. D.''' of the paper.}} |
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#* {{quote-book|en|author=“Anglicanus” [pseudonym]|chapter=Letter III|title=View of the Character, Position, and Prospects, of the Edinburgh Bible Society. In Seven Letters|location=Edinburgh|publisher=Printed for Brown & Wardlaw,{{nb...|16 St Andrew Street}}; and sold by M. Ogle,{{nb...|W. Collins, and Wardlaw & Co. Glasgow; and James Duncan, J. Hatchard & Son, and B. J. Holdsworth, London.}}|year=1827|page=24|pageurl=https://books.google.com/books?id=VN4HAAAAQAAJ&pg=PA24|oclc=1062258796|passage=Whoever starts a doubt as to the validity of any of those allegations to which he has set his '''Q. E. D.''' is indicted as a disturber of the peace.}} |
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===Anagrams=== |
===Anagrams=== |
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Revision as of 15:18, 23 January 2020
See also: QED
English
Phrase
(deprecated template usage) Q.E.D.
- Alternative form of QED (“initialism of quod erat demonstrandum”)
- 1999, William Dunham, “Euler and Analytic Number Theory”, in Euler: The Master of Us All (The Dolciani Mathematical Expositions; 22), [Washington, D.C.]: Mathematical Association of America, →ISBN, page 64:
- By Cases 1 and 2, we see that any finite collection of primes cannot contain all such primes. Thus there are infinitely many primes of this type. Q.E.D.
Noun
Q.E.D.