Proof by contradiction (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Proof by contradiction" in English language version.

refsWebsite

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9doi.org

2^nd place

5jstor.org

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4stanford.edu

179^th place

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4clarku.edu

6,602^nd place

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3books.google.com

3^rd place

2web.archive.org

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1merriam-webster.com

209^th place

191^st place

1thefreedictionary.com

614^th place

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1utm.edu

1,379^th place

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1edc.org

low place

1oxfordreference.com

938^th place

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1ualberta.ca

3,600^th place

2,528^th place

1geneseo.edu

low place

1thoughtco.com

1,430^th place

1,166^th place

1sjsu.edu

6,511^th place

4,308^th place

1literarydevices.net

low place

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1philpapers.org

1,865^th place

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1ncatlab.org

low place

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1vcu.edu

7,721^st place

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1andrej.com

low place

1uni-goettingen.de

2,594^th place

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1utah.edu

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1mathforum.org

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1ctan.org

low place

9,970^th place

andrej.com (Global: low place; English: low place)

math.andrej.com

Bauer, Andrej (29 March 2010). "Proof of negation and proof by contradiction". Mathematics and Computation. Retrieved 26 October 2021.

books.google.com (Global: 3^rd place; English: 3^rd place)

Holmes, Robert L. (14 July 2014). On War and Morality. Princeton University Press. ISBN 978-1-4008-6014-2.
Ziembiński, Zygmunt (2013). Practical Logic. Springer. p. 95. ISBN 978-9401756044.
Ferguson, Thomas Macaulay; Priest, Graham (2016). A Dictionary of Logic. Oxford University Press. p. 146. ISBN 978-0192511553.

clarku.edu (Global: 6,602^nd place; English: 6,109^th place)

mathcs.clarku.edu

Joyce, David (1996). "Euclid's Elements: Book I". Euclid's Elements. Department of Mathematics and Computer Science, Clark University. Retrieved December 23, 2017.
"Euclid's Elements, Book 6, Proposition 1". Retrieved 2 October 2022.
"Euclid's Elements, Book 9, Proposition 20". Retrieved 2 October 2022.

aleph0.clarku.edu

"Euclid's Elements, Book 7, Proposition 33". Retrieved 2 October 2022.

ctan.org (Global: low place; English: 9,970^th place)

The Comprehensive LaTeX Symbol List, pg. 20. http://www.ctan.org/tex-archive/info/symbols/comprehensive/symbols-a4.pdf

doi.org (Global: 2^nd place; English: 2^nd place)

doi.org

Midgley, Mary (1977). "The Philosophical Quarterly (1950-), Vol. 27, No. 107 (Apr., 1977), Oxford University Press for the Scots Philosophical Association and the University of St. Andrews pp. 185-186 The Actor and the Spectator by Lewis White Beck, book reviewed by Mary Midgley on JSTOR.org". The Philosophical Quarterly (1950-). 27 (107): 185–186. doi:10.2307/2219438 – via JSTOR.
Griffith, Stephen (1977). "The Philosophical Review, Duke University Press on behalf of Philosophical Review Jul., 1977, Vol. 86, No. 3 (Jul., 1977), pp. 418-421 The Actor and the Spectator by Lewis Beck, book reviewed by Stephen Griffith on JSTOR.org". The Philosophical Review. 86 (3): 418–421. doi:10.2307/2183800 – via JSTOR.
Meyers, Diana T. (1992). "Reviewed work: On War and Morality, Robert L. Holmes" (PDF). The Philosophical Review. 101 (2): 481–484. doi:10.2307/2185583. JSTOR 2185583.
Rock, Stephen R. (1989). "Reviewed work: On War and Morality, Robert L. Holmes; Paths to Peace: Exploring the Feasibility of Sustainable Peace, Richard Smoke, Willis Harman" (PDF). The American Political Science Review. 83 (4): 1447–1448. doi:10.2307/1961738. JSTOR 1961738.
Lee, Steven (1992). "Reviewed work: On War and Morality., Robert L. Holmes" (PDF). Noûs. 26 (4): 559–562. doi:10.2307/2216042. JSTOR 2216042.
Hilbert, David (1893). "Ueber die vollen Invariantensysteme". Mathematische Annalen. 42 (3): 313–373. doi:10.1007/BF01444162.
Bauer, Andrej (2017). "Five stages of accepting constructive mathematics". Bulletin of the American Mathematical Society. 54 (3): 481–498. doi:10.1090/bull/1556.
"Linear Resolution", From Logic to Logic Programming, The MIT Press, pp. 93–120, 1994, doi:10.7551/mitpress/3133.003.0007, ISBN 978-0-262-28847-7, retrieved 2023-12-21

dx.doi.org

"Linear Resolution", From Logic to Logic Programming, The MIT Press, pp. 93–120, 1994, doi:10.7551/mitpress/3133.003.0007, ISBN 978-0-262-28847-7, retrieved 2023-12-21

edc.org (Global: low place; English: low place)

www2.edc.org

"Proof By Contradiction". www2.edc.org. Retrieved 2023-06-12.

geneseo.edu (Global: low place; English: low place)

milnepublishing.geneseo.edu

DeLancey, Craig (2017-03-27), "8. Reductio ad Absurdum", A Concise Introduction to Logic, Open SUNY Textbooks, retrieved 2021-08-31

jstor.org (Global: 26^th place; English: 20^th place)

Midgley, Mary (1977). "The Philosophical Quarterly (1950-), Vol. 27, No. 107 (Apr., 1977), Oxford University Press for the Scots Philosophical Association and the University of St. Andrews pp. 185-186 The Actor and the Spectator by Lewis White Beck, book reviewed by Mary Midgley on JSTOR.org". The Philosophical Quarterly (1950-). 27 (107): 185–186. doi:10.2307/2219438 – via JSTOR.
Griffith, Stephen (1977). "The Philosophical Review, Duke University Press on behalf of Philosophical Review Jul., 1977, Vol. 86, No. 3 (Jul., 1977), pp. 418-421 The Actor and the Spectator by Lewis Beck, book reviewed by Stephen Griffith on JSTOR.org". The Philosophical Review. 86 (3): 418–421. doi:10.2307/2183800 – via JSTOR.
Meyers, Diana T. (1992). "Reviewed work: On War and Morality, Robert L. Holmes" (PDF). The Philosophical Review. 101 (2): 481–484. doi:10.2307/2185583. JSTOR 2185583.
Rock, Stephen R. (1989). "Reviewed work: On War and Morality, Robert L. Holmes; Paths to Peace: Exploring the Feasibility of Sustainable Peace, Richard Smoke, Willis Harman" (PDF). The American Political Science Review. 83 (4): 1447–1448. doi:10.2307/1961738. JSTOR 1961738.
Lee, Steven (1992). "Reviewed work: On War and Morality., Robert L. Holmes" (PDF). Noûs. 26 (4): 559–562. doi:10.2307/2216042. JSTOR 2216042.

literarydevices.net (Global: low place; English: 9,847^th place)

"Reductio ad Absurdum - Definition & Examples". Literary Devices. 2014-05-18. Retrieved 2021-08-31.

mathforum.org (Global: low place; English: low place)

"Math Forum Discussions".

merriam-webster.com (Global: 209^th place; English: 191^st place)

"Definition of REDUCTIO AD ABSURDUM". www.merriam-webster.com. Retrieved 2019-11-27.

ncatlab.org (Global: low place; English: 8,775^th place)

"Proof by contradiction". nLab. Retrieved 7 October 2022.

oxfordreference.com (Global: 938^th place; English: 658^th place)

The Oxford Essential Dictionary of Foreign Terms in English

philpapers.org (Global: 1,865^th place; English: 1,260^th place)

Beck, Lewis White (November 17, 1975). "The Actor and the Spectator". Yale University Press – via PhilPapers.

sjsu.edu (Global: 6,511^th place; English: 4,308^th place)

scholarworks.sjsu.edu

Daigle, Robert W. (1991). "The reductio ad absurdum argument prior to Aristotle". Master's Thesis. San Jose State Univ. Retrieved August 22, 2012.

stanford.edu (Global: 179^th place; English: 183^rd place)

plato.stanford.edu

Chris Mortensen. "Inconsistent Mathematics". Stanford Encyclopedia of Philosophy.
Bobzien, Susanne (2006). "Ancient Logic". Stanford Encyclopedia of Philosophy. The Metaphysics Research Lab, Stanford University. Retrieved August 22, 2012.
Hyde & Raffman 2018. Hyde, Dominic; Raffman, Diana (2018). "Sorites Paradox". In Zalta, Edward N. (ed.). Stanford Encyclopedia of Philosophy (Summer 2018 ed.).
Moschovakis, Joan (2024), Zalta, Edward N.; Nodelman, Uri (eds.), "Intuitionistic Logic", The Stanford Encyclopedia of Philosophy (Summer 2024 ed.), Metaphysics Research Lab, Stanford University, retrieved 2025-04-05

thefreedictionary.com (Global: 614^th place; English: 572^nd place)

"reductio ad absurdum", Collins English Dictionary – Complete and Unabridged (12th ed.), 2014 [1991], retrieved October 29, 2016

thoughtco.com (Global: 1,430^th place; English: 1,166^th place)

Nordquist, Richard. "Reductio Ad Absurdum in Argument". ThoughtCo. Retrieved 2019-11-27.

ualberta.ca (Global: 3,600^th place; English: 2,528^th place)

math.ualberta.ca

G. H. Hardy, A Mathematician's Apology; Cambridge University Press, 1992. ISBN 9780521427067. PDF p.19 Archived 2021-02-16 at the Wayback Machine.

uni-goettingen.de (Global: 2,594^th place; English: 2,546^th place)

resolver.sub.uni-goettingen.de

Hilbert, David (1893). "Ueber die vollen Invariantensysteme". Mathematische Annalen. 42 (3): 313–373. doi:10.1007/BF01444162.

utah.edu (Global: 2,446^th place; English: 1,661^st place)

math.utah.edu

Alfeld, Peter (16 August 1996). "Why is the square root of 2 irrational?". Understanding Mathematics, a study guide. Department of Mathematics, University of Utah. Retrieved 6 February 2013.

utm.edu (Global: 1,379^th place; English: 1,175^th place)

Nicholas Rescher. "Reductio ad absurdum". The Internet Encyclopedia of Philosophy. Retrieved 21 July 2009.

vcu.edu (Global: 7,721^st place; English: 4,593^rd place)

people.vcu.edu

Richard Hammack, Book of Proof, 3rd edition, 2022, ISBN 978-0-9894721-2-8; see "Chapter 9: Disproof".

web.archive.org (Global: 1^st place; English: 1^st place)

G. H. Hardy, A Mathematician's Apology; Cambridge University Press, 1992. ISBN 9780521427067. PDF p.19 Archived 2021-02-16 at the Wayback Machine.
Gary Hardegree, Introduction to Modal Logic, Chapter 2, pg. II–2. https://web.archive.org/web/20110607061046/http://people.umass.edu/gmhwww/511/pdf/c02.pdf

Proof by contradiction (English Wikipedia)

andrej.com (Global: low place; English: low place)

math.andrej.com

books.google.com (Global: 3rd place; English: 3rd place)

clarku.edu (Global: 6,602nd place; English: 6,109th place)

mathcs.clarku.edu

aleph0.clarku.edu

ctan.org (Global: low place; English: 9,970th place)

doi.org (Global: 2nd place; English: 2nd place)

doi.org

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edc.org (Global: low place; English: low place)

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geneseo.edu (Global: low place; English: low place)

milnepublishing.geneseo.edu

jstor.org (Global: 26th place; English: 20th place)

literarydevices.net (Global: low place; English: 9,847th place)

mathforum.org (Global: low place; English: low place)

merriam-webster.com (Global: 209th place; English: 191st place)

ncatlab.org (Global: low place; English: 8,775th place)

oxfordreference.com (Global: 938th place; English: 658th place)

philpapers.org (Global: 1,865th place; English: 1,260th place)

sjsu.edu (Global: 6,511th place; English: 4,308th place)

scholarworks.sjsu.edu

stanford.edu (Global: 179th place; English: 183rd place)

plato.stanford.edu

thefreedictionary.com (Global: 614th place; English: 572nd place)

thoughtco.com (Global: 1,430th place; English: 1,166th place)

ualberta.ca (Global: 3,600th place; English: 2,528th place)

math.ualberta.ca

uni-goettingen.de (Global: 2,594th place; English: 2,546th place)

resolver.sub.uni-goettingen.de

utah.edu (Global: 2,446th place; English: 1,661st place)

math.utah.edu

utm.edu (Global: 1,379th place; English: 1,175th place)

vcu.edu (Global: 7,721st place; English: 4,593rd place)

people.vcu.edu

web.archive.org (Global: 1st place; English: 1st place)

books.google.com (Global: 3^rd place; English: 3^rd place)

clarku.edu (Global: 6,602^nd place; English: 6,109^th place)

ctan.org (Global: low place; English: 9,970^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

jstor.org (Global: 26^th place; English: 20^th place)

literarydevices.net (Global: low place; English: 9,847^th place)

merriam-webster.com (Global: 209^th place; English: 191^st place)

ncatlab.org (Global: low place; English: 8,775^th place)

oxfordreference.com (Global: 938^th place; English: 658^th place)

philpapers.org (Global: 1,865^th place; English: 1,260^th place)

sjsu.edu (Global: 6,511^th place; English: 4,308^th place)

stanford.edu (Global: 179^th place; English: 183^rd place)

thefreedictionary.com (Global: 614^th place; English: 572^nd place)

thoughtco.com (Global: 1,430^th place; English: 1,166^th place)

ualberta.ca (Global: 3,600^th place; English: 2,528^th place)

uni-goettingen.de (Global: 2,594^th place; English: 2,546^th place)

utah.edu (Global: 2,446^th place; English: 1,661^st place)

utm.edu (Global: 1,379^th place; English: 1,175^th place)

vcu.edu (Global: 7,721^st place; English: 4,593^rd place)

web.archive.org (Global: 1^st place; English: 1^st place)