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Citation styles for Proof theory

APA style

Proof theory. (2014, July 20). Glottopedia, . Retrieved 23:13, January 28, 2026 from http://glottopedia.org/index.php?title=Proof_theory&oldid=16013.

MLA style

"Proof theory." Glottopedia, . 20 Jul 2014, 20:06 UTC. 28 Jan 2026, 23:13 <http://glottopedia.org/index.php?title=Proof_theory&oldid=16013>.

MHRA style

Glottopedia contributors, 'Proof theory', Glottopedia, , 20 July 2014, 20:06 UTC, <http://glottopedia.org/index.php?title=Proof_theory&oldid=16013> [accessed 28 January 2026]

Chicago style

Glottopedia contributors, "Proof theory," Glottopedia, , http://glottopedia.org/index.php?title=Proof_theory&oldid=16013 (accessed January 28, 2026).

CBE/CSE style

Glottopedia contributors. Proof theory [Internet]. Glottopedia, ; 2014 Jul 20, 20:06 UTC [cited 2026 Jan 28]. Available from: http://glottopedia.org/index.php?title=Proof_theory&oldid=16013.

Bluebook style

Proof theory, http://glottopedia.org/index.php?title=Proof_theory&oldid=16013 (last visited January 28, 2026).

BibTeX entry

 @misc{ wiki:xxx,
   author = "Glottopedia",
   title = "Proof theory --- Glottopedia{,} ",
   year = "2014",
   url = "http://glottopedia.org/index.php?title=Proof_theory&oldid=16013",
   note = "[Online; accessed 28-January-2026]"
 }

When using the LaTeX package url (\usepackage{url} somewhere in the preamble) which tends to give much more nicely formatted web addresses, the following may be preferred:

 @misc{ wiki:xxx,
   author = "Glottopedia",
   title = "Proof theory --- Glottopedia{,} ",
   year = "2014",
   url = "\url{http://glottopedia.org/index.php?title=Proof_theory&oldid=16013}",
   note = "[Online; accessed 28-January-2026]"
 }