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  2. All men are created equal - Wikipedia

    en.wikipedia.org/wiki/All_men_are_created_equal

    John C. Calhoun agreed, saying that there was "not a word of truth" in the phrase. [24] In 1853 and in the context of the Kansas-Nebraska Act, Senator John Pettit, said that the phrase was not a "self-evident truth" but a "self-evident lie". [24] These men were all either slave owners or supporters of slavery.

  3. Criteria of truth - Wikipedia

    en.wikipedia.org/wiki/Criteria_of_truth

    Their knowledge and familiarity within a given field or area of knowledge command respect and allow their statements to be criteria of truth. A person may not simply declare themselves an authority, but rather must be properly qualified. Despite the wide respect given to expert testimony, it is not an infallible criterion. For example, multiple ...

  4. 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.

  5. Murphy's law - Wikipedia

    en.wikipedia.org/wiki/Murphy's_law

    Murphy's law [a] is an adage or epigram that is typically stated as: "Anything that can go wrong will go wrong.".. Though similar statements and concepts have been made over the course of history, the law itself was coined by, and named after, American aerospace engineer Edward A. Murphy Jr.; its exact origins are debated, but it is generally agreed it originated from Murphy and his team ...

  6. Truth - Wikipedia

    en.wikipedia.org/wiki/Truth

    Truth or verity is the property of being in accord with fact or reality. [1] In everyday language, it is typically ascribed to things that aim to represent reality or otherwise correspond to it, such as beliefs, propositions, and declarative sentences.

  7. Münchhausen trilemma - Wikipedia

    en.wikipedia.org/wiki/Münchhausen_trilemma

    The failure of proving exactly any truth as expressed by the Münchhausen trilemma does not have to lead to dismissal of objectivity, as with relativism. One example of an alternative is the fallibilism of Karl Popper and Hans Albert, accepting that certainty is impossible, but that it is best to get as close as possible to truth, while ...

  8. Verificationism - Wikipedia

    en.wikipedia.org/wiki/Verificationism

    Verificationism, also known as the verification principle or the verifiability criterion of meaning, is a doctrine in philosophy which asserts that a statement is meaningful only if it is either empirically verifiable (can be confirmed through the senses) or a tautology (true by virtue of its own meaning or its own logical form).

  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.