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  2. Affirmation and negation - Wikipedia

    en.wikipedia.org/wiki/Affirmation_and_negation

    Negative polarity can be indicated by negating words or particles such as the English not, or the Japanese affix-nai, or by other means, which reverses the meaning of the predicate. The process of converting affirmative to negative is called negation – the grammatical rules for negation vary from language to language, and a given language may ...

  3. Negation - Wikipedia

    en.wikipedia.org/wiki/Negation

    In logic, negation, also called the logical not or logical complement, is an operation that takes a proposition to another proposition "not ", written , , ′ [1] or ¯. [citation needed] It is interpreted intuitively as being true when is false, and false when is true.

  4. Double negative - Wikipedia

    en.wikipedia.org/wiki/Double_negative

    Because standard English does not have negative concord but many varieties and registers of English do, and because most English speakers can speak or comprehend across varieties and registers, double negatives as collocations are functionally auto-antonymic (contranymic) in English; for example, a collocation such as "ain't nothin" or "not ...

  5. Yes and no - Wikipedia

    en.wikipedia.org/wiki/Yes_and_no

    Like Early Modern English, the Romanian language has a four-form system. The affirmative and negative responses to positively phrased questions are da and nu, respectively. But in responses to negatively phrased questions they are prefixed with ba (i.e. ba da and ba nu). nu is also used as a negation adverb, infixed between subject and verb ...

  6. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.

  7. Polarity item - Wikipedia

    en.wikipedia.org/wiki/Polarity_item

    A negation is a negative polarity item, abbreviated NPI or NEG. The linguistic environment in which a polarity item appears is a licensing context . In the simplest case, an affirmative statement provides a licensing context for a PPI, while negation provides a licensing context for an NPI.

  8. You can still be contagious with COVID if you have a negative ...

    www.aol.com/news/still-contagious-covid-negative...

    If you get two negative at-home COVID test results 48 hours apart after previously testing positive, you are likely no longer contagious. But how long that will take is "wholly dependent on the ...

  9. Negative verb - Wikipedia

    en.wikipedia.org/wiki/Negative_verb

    The English auxiliary 'do', in combination with the negative verb, indicates whether one or multiple individuals are involved, while the verb referring to the negated activity remains non-inflected. Concluding this, ordinary verbs take the auxiliary do when negated by not .