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  2. List of logic symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_logic_symbols

    In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.

  3. Logical disjunction - Wikipedia

    en.wikipedia.org/wiki/Logical_disjunction

    Because the logical or means a disjunction formula is true when either one or both of its parts are true, it is referred to as an inclusive disjunction. This is in contrast with an exclusive disjunction, which is true when one or the other of the arguments are true, but not both (referred to as exclusive or, or XOR).

  4. Exclusive or - Wikipedia

    en.wikipedia.org/wiki/Exclusive_or

    Exclusive or, exclusive disjunction, exclusive alternation, logical non-equivalence, or logical inequality is a logical operator whose negation is the logical biconditional. With two inputs, XOR is true if and only if the inputs differ (one is true, one is false).

  5. Descending wedge - Wikipedia

    en.wikipedia.org/wiki/Descending_wedge

    The vertically reflected symbol, ∧, is a wedge, and often denotes related or dual operators. The ∨ symbol was introduced by Russell and Whitehead in Principia Mathematica, where they called it the Logical Sum or Disjunctive Function. [1] In Unicode the symbol is encoded U+2228 ∨ LOGICAL OR (∨, ∨). In TeX, it is \vee or \lor.

  6. Logical connective - Wikipedia

    en.wikipedia.org/wiki/Logical_connective

    Conjunction: the symbol appeared in Heyting in 1930 [2] (compare to Peano's use of the set-theoretic notation of intersection [6]); the symbol & appeared at least in Schönfinkel in 1924; [7] the symbol comes from Boole's interpretation of logic as an elementary algebra. Disjunction: the symbol appeared in Russell in 1908 [5] (compare to Peano ...

  7. OR gate - Wikipedia

    en.wikipedia.org/wiki/OR_gate

    In addition to 1 and 0, these states may be called true and false, high and low, active and inactive, or other such pairs of symbols. Thus it performs a logical disjunction (∨) from mathematical logic. The gate can be represented with the plus sign (+) because it can be used for logical addition. [1]

  8. Wedge (symbol) - Wikipedia

    en.wikipedia.org/wiki/Wedge_(symbol)

    Wedge (∧) is a symbol that looks similar to an in-line caret (^). It is used to represent various operations. In Unicode, the symbol is encoded U+2227 ∧ LOGICAL AND (∧, ∧) and by \wedge and \land in TeX. The opposite symbol (∨) is called a vel, or sometimes a (descending) wedge.

  9. Material conditional - Wikipedia

    en.wikipedia.org/wiki/Material_conditional

    Logic gate: Normal forms; Disjunctive ... (also known as material implication) is an operation commonly used in logic. When the conditional symbol ...