"masked man fallacy" meaning in English

See masked man fallacy in All languages combined, or Wiktionary

Noun

Forms: masked man fallacies [plural]
Head templates: {{en-noun}} masked man fallacy (plural masked man fallacies)
  1. (logic, philosophy) A fallacy of inferring that since one knows (or does not know) something by one description, one must know (or not know) it by another, as in "I know who my father is. I do not know who the masked man is. Therefore, my father is not the masked man." Categories (topical): Logic, Logical fallacies, Philosophy Synonyms: intensional fallacy, masked-man fallacy Related terms: identity of indiscernibles, Leibniz's law

Inflected forms

Alternative forms

Download JSON data for masked man fallacy meaning in English (3.6kB)

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          "ref": "1978, Bernard Williams, Descartes: The Project of Pure Enquiry, New York: Routledge, published 2005, page 97",
          "text": "That is to say, one cannot infer from one's subjective state of certainty and uncertainty about two propositions, to the objective connection or lack of connection between them; but it is just such an inference that Descartes seems to be making about himself and his body, and which gives his argument its embarrassing resemblance to the masked man fallacy.",
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          "ref": "2001, Reports of the Tax Court of the United States, volume 117",
          "text": "[…] that because the per diem payments are compensatory, ipso facto they are not travel expenses. Without further explication, this latter proposition might be thought to exemplify a species of the so-called masked man fallacy (\"I know who my father is; I do not know who the masked man is; so, my father is not the masked man.\").",
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        "(logic, philosophy) A fallacy of inferring that since one knows (or does not know) something by one description, one must know (or not know) it by another, as in \"I know who my father is. I do not know who the masked man is. Therefore, my father is not the masked man.\""
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This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-05-01 from the enwiktionary dump dated 2024-04-21 using wiktextract (f4fd8c9 and c9440ce). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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