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  2. If and only if - Wikipedia

    en.wikipedia.org/wiki/If_and_only_if

    In writing, phrases commonly used as alternatives to P "if and only if" Q include: Q is necessary and sufficient for P, for P it is necessary and sufficient that Q, P is equivalent (or materially equivalent) to Q (compare with material implication), P precisely if Q, P precisely (or exactly) when Q, P exactly in case Q, and P just in case Q. [3]

  3. Case role - Wikipedia

    en.wikipedia.org/wiki/Case_role

    Recent research indicates nominative is distinct from ergative case [3]: p.2 Some research indicates nominative is synonymous to ergative case [3]: p.4 Accusative: Indicates the direct object, as the complement of a transitive verb [12] Lexical case associated with themes; Ex. The teacher scolded us. Dative: Indicates the indirect object of a verb

  4. Case grammar - Wikipedia

    en.wikipedia.org/wiki/Case_grammar

    Case grammar is a system of linguistic analysis, focusing on the link between the valence, or number of subjects, objects, etc., of a verb and the grammatical context it requires. The system was created by the American linguist Charles J. Fillmore in the context of Transformational Grammar (1968).

  5. Research question - Wikipedia

    en.wikipedia.org/wiki/Research_question

    A research question is "a question that a research project sets out to answer". [1] Choosing a research question is an essential element of both quantitative and qualitative research . Investigation will require data collection and analysis, and the methodology for this will vary widely.

  6. Necessity and sufficiency - Wikipedia

    en.wikipedia.org/wiki/Necessity_and_sufficiency

    It may be the case that several sufficient conditions, when taken together, constitute a single necessary condition (i.e., individually sufficient and jointly necessary), as illustrated in example 5. Example 1 "John is a king" implies that John is male. So knowing that John is a king is sufficient to knowing that he is a male. Example 2

  7. Interrogative - Wikipedia

    en.wikipedia.org/wiki/Interrogative

    Interrogative sentences are generally divided between yes–no questions, which ask whether or not something is the case (and invite an answer of the yes/no type), and wh-questions, which specify the information being asked about using a word like which, who, how, etc.

  8. Just in case - Wikipedia

    en.wikipedia.org/wiki/Just_in_case

    Just-in-case manufacturing (JIC) is a term sometimes applied to traditional manufacturing systems used before the influence of modern technologies and newer transportation infrastructures. It is the contrary in many ways to the recently evolved Just In Time manufacturing system.

  9. Question - Wikipedia

    en.wikipedia.org/wiki/Question

    A question mark made of smaller question marks. A question is an utterance which serves as a request for information.Questions are sometimes distinguished from interrogatives, which are the grammatical forms, typically used to express them.