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  2. Oxymoron - Wikipedia

    en.wikipedia.org/wiki/Oxymoron

    Oxymorons are words that communicate contradictions. 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.

  3. Contradiction - Wikipedia

    en.wikipedia.org/wiki/Contradiction

    Using minimal logic, a logic with similar axioms to classical logic but without ex falso quodlibet and proof by contradiction, we can investigate the axiomatic strength and properties of various rules that treat contradiction by considering theorems of classical logic that are not theorems of minimal logic. [6]

  4. Glossary of logic - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_logic

    The principle in logic that from a contradiction, any statement can be proven, related to the principle of ex falso quodlibet. exportation A logical principle that transforms a statement of the form ( P ∧ Q ) → R {\displaystyle (P\land Q)\rightarrow R} into the equivalent form P → ( Q → R ) {\displaystyle P\rightarrow (Q\rightarrow R ...

  5. Reductio ad absurdum - Wikipedia

    en.wikipedia.org/wiki/Reductio_ad_absurdum

    Reductio ad absurdum, painting by John Pettie exhibited at the Royal Academy in 1884. In logic, reductio ad absurdum (Latin for "reduction to absurdity"), also known as argumentum ad absurdum (Latin for "argument to absurdity") or apagogical arguments, is the form of argument that attempts to establish a claim by showing that the opposite scenario would lead to absurdity or contradiction.

  6. List of paradoxes - Wikipedia

    en.wikipedia.org/wiki/List_of_paradoxes

    However, some of these paradoxes qualify to fit into the mainstream viewpoint of a paradox, which is a self-contradictory result gained even while properly applying accepted ways of reasoning. These paradoxes, often called antinomy , point out genuine problems in our understanding of the ideas of truth and description .

  7. Glossary of rhetorical terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_rhetorical_terms

    Onomatopoeia – words that imitate the sounds, objects, or actions they refer to, for example "buzz", "hullabaloo", "bling". Opening statement – first part of discourse; should gain audiences' attention. Orator – a public speaker, especially one who is eloquent or skilled. Oxymoron – opposed or markedly contradictory terms joined for ...

  8. Mathematical proof - Wikipedia

    en.wikipedia.org/wiki/Mathematical_proof

    The word proof derives from the Latin probare 'to test'; related words include English probe, probation, and probability, as well as Spanish probar 'to taste' (sometimes 'to touch' or 'to test'), [5] Italian provare 'to try', and German probieren 'to try'.

  9. Irresistible force paradox - Wikipedia

    en.wikipedia.org/wiki/Irresistible_force_paradox

    An example of this paradox in eastern thought can be found in the origin of the Chinese word for contradiction (Chinese: 矛盾; pinyin: máodùn; lit. 'spear-shield'). This term originates from a story (see Kanbun § Example) in the 3rd century BC philosophical book Han Feizi. [2]