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  2. Logical connective - Wikipedia

    en.wikipedia.org/wiki/Logical_connective

    Logical connectives can be used to link zero or more statements, so one can speak about n-ary logical connectives. The boolean constants True and False can be thought of as zero-ary operators. Negation is a unary connective, and so on.

  3. Propositional calculus - Wikipedia

    en.wikipedia.org/wiki/Propositional_calculus

    Since logical connectives are defined semantically only in terms of the truth values that they take when the propositional variables that they're applied to take either of the two possible truth values, [1] [34] the semantic definition of the connectives is usually represented as a truth table for each of the connectives, [1] [34] [69] as seen ...

  4. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics. Additionally, the subsequent columns contains an informal explanation, a short example, the Unicode location, the name for use in HTML documents, [1] and the LaTeX symbol.

  5. Functional completeness - Wikipedia

    en.wikipedia.org/wiki/Functional_completeness

    Apart from logical connectives (Boolean operators), functional completeness can be introduced in other domains. For example, a set of reversible gates is called functionally complete, if it can express every reversible operator. The 3-input Fredkin gate is functionally complete reversible gate by itself – a sole sufficient operator.

  6. Category:Logical connectives - Wikipedia

    en.wikipedia.org/wiki/Category:Logical_connectives

    Pages in category "Logical connectives" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. ...

  7. 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 ...

  8. Propositional formula - Wikipedia

    en.wikipedia.org/wiki/Propositional_formula

    The "laws" can be verified easily with truth tables. For each law, the principal (outermost) connective is associated with logical equivalence ≡ or identity =. A complete analysis of all 2 n combinations of truth-values for its n distinct variables will result in a column of 1's (T's) underneath this connective. This finding makes each law ...

  9. Logical conjunction - Wikipedia

    en.wikipedia.org/wiki/Logical_conjunction

    In logic, mathematics and linguistics, and is the truth-functional operator of conjunction or logical conjunction. The logical connective of this operator is typically represented as ∧ {\displaystyle \wedge } [ 1 ] or & {\displaystyle \&} or K {\displaystyle K} (prefix) or × {\displaystyle \times } or ⋅ {\displaystyle \cdot } [ 2 ] in ...

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