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  2. Either/Or (Kierkegaard book) - Wikipedia

    en.wikipedia.org/wiki/Either/Or_(Kierkegaard_book)

    Frederick DeW. Bolman Jr. insisted that reviewers consider the book in this way: "In general, we have a right to discover, if we can, the meaning of a work as comprehensive as Either/Or, considering it upon its own merits and not reducing the meaning so as to fit into the author's later perspective. It occurred to me that this was a service to ...

  3. Either/or - Wikipedia

    en.wikipedia.org/wiki/Either–Or

    Either/or and related terms may refer to: Either/Or (Kierkegaard book), an influential book by philosopher Søren Kierkegaard; Either/Or (Batuman novel), a novel by Elif Batuman; Either/Or, music by Elliott Smith; Either/Or, a comedy game show; either...or and neither...nor, examples of correlative conjunctions in English

  4. Russell's paradox - Wikipedia

    en.wikipedia.org/wiki/Russell's_paradox

    Rather, it asserts that given any set X, any subset of X definable using first-order logic exists. The object R defined by Russell's paradox above cannot be constructed as a subset of any set X, and is therefore not a set in ZFC. In some extensions of ZFC, notably in von Neumann–Bernays–Gödel set theory, objects like R are called proper ...

  5. Arrow's impossibility theorem - Wikipedia

    en.wikipedia.org/wiki/Arrow's_impossibility_theorem

    The first set of methods studied by economists are the majority-rule, or Condorcet, methods. These rules limit spoilers to situations where majority rule is self-contradictory, called Condorcet cycles, and as a result uniquely minimize the possibility of a spoiler effect among ranked rules. (Indeed, many different social welfare functions can ...

  6. Either/Or (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Neither/nor

    Either/Or is an influential book by philosopher Søren Kierkegaard. Either/Or and related terms may also refer to: Either/Or, a novel by Elif Batuman; Either/Or, music by Elliott Smith; Either/Or, a comedy game show; either...or and neither...nor, examples of correlative conjunctions in English

  7. Law of excluded middle - Wikipedia

    en.wikipedia.org/wiki/Law_of_excluded_middle

    In logic, the law of excluded middle or the principle of excluded middle states that for every proposition, either this proposition or its negation is true. [1] [2] It is one of the three laws of thought, along with the law of noncontradiction, and the law of identity; however, no system of logic is built on just these laws, and none of these laws provides inference rules, such as modus ponens ...

  8. Logical NOR - Wikipedia

    en.wikipedia.org/wiki/Logical_NOR

    In Boolean logic, logical NOR, [1] non-disjunction, or joint denial [1] is a truth-functional operator which produces a result that is the negation of logical or.That is, a sentence of the form (p NOR q) is true precisely when neither p nor q is true—i.e. when both p and q are false.

  9. Glossary of logic - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_logic

    A three-valued logic where the third truth value is the truth-value gap "neither true nor false" ("N"), and the designated values are "true" and "neither true nor false." [10] analysis 1. Analysis, the process of breaking a concept down into more simple parts, so that its logical structure is displayed. 2. Mathematical analysis analytic