Reflexive relation (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Reflexive relation" in English language version.

Last modified: 16:32:23, 8 August 2026 (UTC)

Ref.Un. Ref.Website

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2^nd place

2^nd place

11etymonline.com

669^th place

670^th place

6^th place

6^th place

11books.google.com

3^rd place

3^rd place

3,436^th place

2,060^th place

11britannica.com

37^th place

64^th place

1,188^th place

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archive.org (Global: 6^th place; English: 6^th place)

Peano, Giuseppe (1889). Arithmetices principia: nova methodo (in Latin). Fratres Bocca. pp. XIII. Archived from the original on 2009-07-15.

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

Peano, Giuseppe (1889). Arithmetices principia: nova methodo (in Latin). Fratres Bocca. pp. XIII. Archived from the original on 2009-07-15.

britannica.com (Global: 37^th place; English: 64^th place)

The Encyclopædia Britannica calls this property quasi-reflexivity.

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

Oxford English Dictionary, s.v. “Reflexive (adj. & n.), Etymology,” September 2024.
Russell, Bertrand (1903). Principles of Mathematics. doi:10.4324/9780203864760. ISBN 978-1-135-22311-3. {{cite book}}: ISBN / Date incompatibility (help)
Oxford English Dictionary, s.v. “Reflexive (adj.), sense 7 - Mathematics and Logic”, "1903–", September 2024.
Fonseca de Oliveira & Pereira Cunha Rodrigues 2004, p. 337 Fonseca de Oliveira, José Nuno; Pereira Cunha Rodrigues, César de Jesus (2004), "Transposing relations: from Maybe functions to hash tables", Mathematics of Program Construction, Lecture Notes in Computer Science, vol. 3125, Springer, pp. 334–356, doi:10.1007/978-3-540-27764-4_18, ISBN 978-3-540-22380-1

etymonline.com (Global: 669^th place; English: 670^th place)

"reflexive | Etymology of reflexive by etymonline". www.etymonline.com. Retrieved 2024-12-22.

oeis.org (Global: 1,188^th place; English: 866^th place)

On-Line Encyclopedia of Integer Sequences A053763

umass.edu (Global: 3,436^th place; English: 2,060^th place)

people.umass.edu

This term is due to C S Peirce; see Russell 1920, p. 32. Russell also introduces two equivalent terms to be contained in or imply diversity. Russell, Bertrand (1920). Introduction to Mathematical Philosophy (PDF) (2nd ed.). London: George Allen & Unwin, Ltd. (Online corrected edition, Feb 2010)