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  2. Necessity and sufficiency - Wikipedia

    en.wikipedia.org/wiki/Necessity_and_sufficiency

    A number's being divisible by 4 is sufficient (but not necessary) for it to be even, but being divisible by 2 is both sufficient and necessary for it to be even. Example 3 An occurrence of thunder is a sufficient condition for the occurrence of lightning in the sense that hearing thunder, and unambiguously recognizing it as such, justifies ...

  3. Synonym - Wikipedia

    en.wikipedia.org/wiki/Synonym

    A thesaurus or synonym dictionary lists similar or related words; these are often, but not always, synonyms. [15] The word poecilonym is a rare synonym of the word synonym. It is not entered in most major dictionaries and is a curiosity or piece of trivia for being an autological word because of its meta quality as a synonym of synonym.

  4. Thesaurus - Wikipedia

    en.wikipedia.org/wiki/Thesaurus

    Thesaurus Linguae Latinae. A modern english thesaurus. A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms ...

  5. Modal logic - Wikipedia

    en.wikipedia.org/wiki/Modal_logic

    The commonly employed system S5 simply makes all modal truths necessary. For example, if p is possible, then it is "necessary" that p is possible. Also, if p is necessary, then it is necessary that p is necessary. Other systems of modal logic have been formulated, in part because S5 does not describe every kind of modality of interest.

  6. Glossary of physics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_physics

    It is an important quantity in physics because it is a conserved quantity–that is, the total angular momentum of a closed system remains constant. angular velocity (ω) How fast an object rotates or revolves relative to another point, i.e. how fast the angular position or orientation of an object changes with time.

  7. Amor fati - Wikipedia

    en.wikipedia.org/wiki/Amor_fati

    Amor fati is a Latin phrase that may be translated as "love of fate" or "love of one's fate".It is used to describe an attitude in which one sees everything that happens in one's life, including suffering and loss, as good or, at the very least, necessary.

  8. Pleonasm - Wikipedia

    en.wikipedia.org/wiki/Pleonasm

    The words need not be etymologically related, but simply conceptually, to be considered an example of cognate object: "We wept tears of joy." Such constructions are not actually redundant (unlike "She slept a sleep" or "We wept tears") because the object's modifiers provide additional information.

  9. Glossary of philosophy - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_philosophy

    Also called humanocentrism. The practice, conscious or otherwise, of regarding the existence and concerns of human beings as the central fact of the universe. This is similar, but not identical, to the practice of relating all that happens in the universe to the human experience. To clarify, the first position concludes that the fact of human existence is the point of universal existence; the ...