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  2. Logical grammar - Wikipedia

    en.wikipedia.org/wiki/Logical_grammar

    Logical, rational or general grammar was the dominant approach to language until it was supplanted by romanticism. [3] Since then, there have been attempts to revive logical grammar. The idea is today at least partially represented by categorial grammar, formal semantics, and transcendental phenomenology,

  3. Grammaticality - Wikipedia

    en.wikipedia.org/wiki/Grammaticality

    According to Chomsky, a speaker's grammaticality judgement is based on two factors: . A native speaker's linguistic competence, which is the knowledge that they have of their language, allows them to easily judge whether a sentence is grammatical or ungrammatical based on intuitive introspection.

  4. Glossary of logic - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_logic

    A logical operator that specifies the quantity of specimens in the domain of discourse that satisfy an open formula, such as "all", "some", or "exists". quantifier shift fallacy A logical fallacy involving the incorrect interchange of the position of two quantifiers, or a quantifier and a modal operator, leading to invalid conclusions. quantity

  5. Logical form - Wikipedia

    en.wikipedia.org/wiki/Logical_Form

    A logical argument, seen as an ordered set of sentences, has a logical form that derives from the form of its constituent sentences; the logical form of an argument is sometimes called argument form. [6] Some authors only define logical form with respect to whole arguments, as the schemata or inferential structure of the argument. [7]

  6. Statement (logic) - Wikipedia

    en.wikipedia.org/wiki/Statement_(logic)

    In logic and semantics, the term statement is variously understood to mean either: . a meaningful declarative sentence that is true or false, or; a proposition.Which is the assertion that is made by (i.e., the meaning of) a true or false declarative sentence.

  7. English grammar - Wikipedia

    en.wikipedia.org/wiki/English_grammar

    Professor Whitney in his Essentials of English Grammar recommends the German original stating "there is an English version, but it is hardly to be used." (p. vi) Meyer-Myklestad, J. (1967). An Advanced English Grammar for Students and Teachers. Universitetsforlaget-Oslo. p. 627. Morenberg, Max (2002). Doing Grammar, 3rd edition. New York ...

  8. Syntactic Structures - Wikipedia

    en.wikipedia.org/wiki/Syntactic_Structures

    The grammar model discussed in Noam Chomsky's Syntactic Structures (1957) Chomsky's transformational grammar has three parts: phrase structure rules, transformational rules and morphophonemic rules. [68] The phrase structure rules are used for expanding lexical categories and for substitutions. These yield a string of morphemes. A ...

  9. If and only if - Wikipedia

    en.wikipedia.org/wiki/If_and_only_if

    The corresponding logical symbols are "", "", [6] and , [10] and sometimes "iff".These are usually treated as equivalent. However, some texts of mathematical logic (particularly those on first-order logic, rather than propositional logic) make a distinction between these, in which the first, ↔, is used as a symbol in logic formulas, while ⇔ is used in reasoning about those logic formulas ...