Skip to main content
Select Source:

Ayer, Sir Alfred Jules

Sir Alfred Jules Ayer (ā´ər, âr), 1910–89, British philosopher, b. London, grad. Oxford, 1932. From 1933 to 1944 he was lecturer and research fellow at Oxford's Christ Church College and then was fellow (1944–45) and dean (1945–46) of Wadham College. From 1946 to 1959 Ayer was Grote professor of the philosophy of mind and logic at the Univ. of London, and in 1959 he became Wykeham professor of logic at Oxford. His extremely influential Language, Truth, and Logic (1936) brought logical positivism to the attention of British and American philosophers. Among his other works are The Foundations of Empirical Knowledge (1940), Philosophical Essays (1954), The Problem of Knowledge (1956), and The Concept of a Person (1963). He was knighted in 1970.

See biography by B. Rogers (2000).

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Ayer, Sir Alfred Jules." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 18 Aug. 2018 <http://www.encyclopedia.com>.

"Ayer, Sir Alfred Jules." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (August 18, 2018). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/ayer-sir-alfred-jules

"Ayer, Sir Alfred Jules." The Columbia Encyclopedia, 6th ed.. . Retrieved August 18, 2018 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/ayer-sir-alfred-jules

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.

Ayer, Sir A.J.

Ayer, Sir A.J. ( Alfred Jules) (1910–89) English philosopher. Building on the ideas of the Vienna Circle of positivists and of George Berkeley, David Hume, Bertrand Russell, and Ludwig Wittgenstein, he introduced logical positivism into British and US philosophy. His works include Language, Truth and Logic (1936) and Philosophy and Language (1960).

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Ayer, Sir A.J.." World Encyclopedia. . Encyclopedia.com. 18 Aug. 2018 <http://www.encyclopedia.com>.

"Ayer, Sir A.J.." World Encyclopedia. . Encyclopedia.com. (August 18, 2018). http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/ayer-sir-aj

"Ayer, Sir A.J.." World Encyclopedia. . Retrieved August 18, 2018 from Encyclopedia.com: http://www.encyclopedia.com/environment/encyclopedias-almanacs-transcripts-and-maps/ayer-sir-aj

Learn more about citation styles

Citation styles

Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, Encyclopedia.com cannot guarantee each citation it generates. Therefore, it’s best to use Encyclopedia.com citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

http://www.mla.org/style

The Chicago Manual of Style

http://www.chicagomanualofstyle.org/tools_citationguide.html

American Psychological Association

http://apastyle.apa.org/

Notes:
  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most Encyclopedia.com content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.