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  2. Fitch's paradox of knowability - Wikipedia

    en.wikipedia.org/wiki/Fitch's_paradox_of_knowability

    Hence, the statement "p is an unknown truth" cannot be both known and true at the same time. Therefore, if all truths are knowable, the set of "all truths" must not include any of the form "something is an unknown truth"; thus there must be no unknown truths, and thus all truths must be known. This can be formalised with modal logic.

  3. Criteria of truth - Wikipedia

    en.wikipedia.org/wiki/Criteria_of_truth

    The full meaning of an idea is self-apparent in its application. For example, the therapeutic value and effect of penicillin in relation to infections is proven in its administration. Although pragmatism is considered a valuable criterion, it must be used with caution and reservation, due to its potential for false positives. For example, a ...

  4. List of ISO 639 language codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_639_language_codes

    Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). [2] Part 1 of the standard, ISO 639-1 defines the two-letter codes, and Part 3 (2007), ISO 639-3 , defines the three-letter codes, aiming to cover all known natural languages , largely superseding the ISO 639-2 three-letter code standard.

  5. Sorites paradox - Wikipedia

    en.wikipedia.org/wiki/Sorites_paradox

    Color gradient illustrating a sorites paradox, any adjacent colors being indistinguishable by the human eye. There are many variations of the sorites paradox, some of which allow consideration of the difference between "being" and "seeming", that is, between a question of fact and a question of perception; [2] this may be seen to be relevant when the argument hinges on each change being ...

  6. Urdu Lughat - Wikipedia

    en.wikipedia.org/wiki/Urdu_Lughat

    It is the most comprehensive dictionary in the history of Urdu language. [citation needed] It is published by the Urdu Lughat Board, Karachi. The dictionary was edited by the honorary director general of the board Maulvi Abdul Haq who had already been working on an Urdu dictionary since the establishment of the Urdu Dictionary Board, Karachi ...

  7. Urdu - Wikipedia

    en.wikipedia.org/wiki/Urdu

    Urdu in its less formalised register is known as rekhta (ریختہ, rek̤h̤tah, 'rough mixture', Urdu pronunciation:); the more formal register is sometimes referred to as زبانِ اُردُوئے معلّٰى, zabān-i Urdū-yi muʿallá, 'language of the exalted camp' (Urdu pronunciation: [zəbaːn eː ʊrdu eː moəllaː]) or لشکری ...

  8. Truth-conditional semantics - Wikipedia

    en.wikipedia.org/wiki/Truth-conditional_semantics

    Truth-conditional semantics is an approach to semantics of natural language that sees meaning (or at least the meaning of assertions) as being the same as, or reducible to, their truth conditions. This approach to semantics is principally associated with Donald Davidson , and attempts to carry out for the semantics of natural language what ...

  9. Dialetheism - Wikipedia

    en.wikipedia.org/wiki/Dialetheism

    Dialetheism (/ d aɪ ə ˈ l ɛ θ i ɪ z əm /; from Greek δι-di-'twice' and ἀλήθεια alḗtheia 'truth') is the view that there are statements that are both true and false. More precisely, it is the belief that there can be a true statement whose negation is also true.