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  2. List of valid argument forms - Wikipedia

    en.wikipedia.org/wiki/List_of_valid_argument_forms

    It does not leave the user with one statement alone at the end of the argument, instead, it gives an option of two different statements. The first premise gives an option of two different statements. Then it states that if the first one happens, there will be a particular outcome and if the second happens, there will be a separate outcome.

  3. Affirmation and negation - Wikipedia

    en.wikipedia.org/wiki/Affirmation_and_negation

    To signal negation, as well as other semantic relation, these negation particles combine with different aspects of the verb. [10] These pre-verb negatory particles can also be used to convey tense, mood, aspect, and polarity (negation), and in some cases can be used to convey more than one of these features. [10]

  4. Dialetheism - Wikipedia

    en.wikipedia.org/wiki/Dialetheism

    Dialetheism (/ d aɪ ə ˈ l ɛ θ i ɪ z əm /; from Greek δι-di-'twice' and ἀλήθεια alḗtheia 'truth') is the view that there are statements that are both true and false. More precisely, it is the belief that there can be a true statement whose negation is also true. Such statements are called "true contradictions", dialetheia, or ...

  5. Negative inversion - Wikipedia

    en.wikipedia.org/wiki/Negative_inversion

    In linguistics, negative inversion is one of many types of subject–auxiliary inversion in English.A negation (e.g. not, no, never, nothing, etc.) or a word that implies negation (only, hardly, scarcely) or a phrase containing one of these words precedes the finite auxiliary verb necessitating that the subject and finite verb undergo inversion. [1]

  6. Negative raising - Wikipedia

    en.wikipedia.org/wiki/Negative_raising

    In linguistics, negative raising is a phenomenon that concerns the raising of negation from the embedded or subordinate clause of certain predicates to the matrix or main clause. [1] The higher copy of the negation, in the matrix clause, is pronounced; but the semantic meaning is interpreted as though it were present in the embedded clause. [2]

  7. Propositional calculus - Wikipedia

    en.wikipedia.org/wiki/Propositional_calculus

    Propositional logic deals with statements, which are defined as declarative sentences having truth value. [29] [1] Examples of statements might include: Wikipedia is a free online encyclopedia that anyone can edit. London is the capital of England. All Wikipedia editors speak at least three languages.

  8. Glossary of logic - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_logic

    A statement or proposition that asserts both a statement and its negation, considered universally false in classical logic. contradictory Referring to a pair of statements or propositions where one is the negation of the other, such that they cannot both be true or both be false. contraposition

  9. Do-support - Wikipedia

    en.wikipedia.org/wiki/Do-support

    Do-support (sometimes referred to as do-insertion or periphrastic do), in English grammar, is the use of the auxiliary verb do (or one of its inflected forms e.g. does), to form negated clauses and constructions which require subject–auxiliary inversion, such as questions.