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  2. Paradox - Wikipedia

    en.wikipedia.org/wiki/Paradox

    A paradox is a logically self-contradictory statement or a statement that runs contrary to one's expectation. [1] [2] It is a statement that, despite apparently valid reasoning from true or apparently true premises, leads to a seemingly self-contradictory or a logically unacceptable conclusion.

  3. List of paradoxes - Wikipedia

    en.wikipedia.org/wiki/List_of_paradoxes

    Bertrand's box paradox: A paradox of conditional probability closely related to the Boy or Girl paradox. Bertrand's paradox: Different common-sense definitions of randomness give quite different results. Birthday paradox: In a random group of only 23 people, there is a better than 50/50 chance two of them have the same birthday.

  4. Grelling–Nelson paradox - Wikipedia

    en.wikipedia.org/wiki/Grelling–Nelson_paradox

    A similar slight modification to the definition of "autological" (such as declaring it false of "nonautological" and its synonyms) might seem to correct that, but the paradox still remains for synonyms of "autological" and "heterological" such as "self-descriptive" and "non-self-descriptive", whose meanings also would need adjusting, and the ...

  5. Temporal paradox - Wikipedia

    en.wikipedia.org/wiki/Temporal_paradox

    A bootstrap paradox, also known as an information loop, an information paradox, [6] an ontological paradox, [7] or a "predestination paradox" is a paradox of time travel that occurs when any event, such as an action, information, an object, or a person, ultimately causes itself, as a consequence of either retrocausality or time travel. [8] [9 ...

  6. Paradoxical reaction - Wikipedia

    en.wikipedia.org/wiki/Paradoxical_reaction

    A paradoxical reaction (or paradoxical effect) is an effect of a chemical substance, such as a medical drug, that is opposite to what would usually be expected. An example of a paradoxical reaction is pain caused by a pain relief medication .

  7. Paradox (literature) - Wikipedia

    en.wikipedia.org/wiki/Paradox_(literature)

    In literature, the paradox is an anomalous juxtaposition of incongruous ideas for the sake of striking exposition or unexpected insight. It functions as a method of literary composition and analysis that involves examining apparently contradictory statements and drawing conclusions either to reconcile them or to explain their presence.

  8. Oxymoron - Wikipedia

    en.wikipedia.org/wiki/Oxymoron

    An oxymoron (plurals: oxymorons and oxymora) is a figure of speech that juxtaposes concepts with opposite meanings within a word or in a phrase that is a self-contradiction. As a rhetorical device, an oxymoron illustrates a point to communicate and reveal a paradox.

  9. Zeno's paradoxes - Wikipedia

    en.wikipedia.org/wiki/Zeno's_paradoxes

    [1] [2] Diogenes Laërtius, citing Favorinus, says that Zeno's teacher Parmenides was the first to introduce the paradox of Achilles and the tortoise. But in a later passage, Laërtius attributes the origin of the paradox to Zeno, explaining that Favorinus disagrees. [3] Modern academics attribute the paradox to Zeno. [1] [2]