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  1. Given a proposition p, then ∼ p (“not p ”) is to count as false when p is true and true when p is false; “∼” (when thus interpreted) is known as the negation sign, and ∼ p as the negation of p.
    www.britannica.com/topic/formal-logic/The-proposit…
    Negation – “not p” Negation is the statement “not p”, denoted (neg p), and so it would have the opposite truth value of p. If p is true, then (neg p) if false. If p is false, then (neg p) is true.
    www.mathbootcamps.com/truth-tables-negation-co…
    Negation (NOT statements) The negation of a statement p p is not p p. The symbol ∼ ∼ or ¬ ¬ is used to denote negation. If p p is true, then ∼ p ∼ p is false, and vice versa.
    www.varsitytutors.com/hotmath/hotmath_help/topic…
    In simple terms, when placed before a statement, it signifies the opposite of that statement. Example 1: Logical Operations If P P is a proposition such as "It is raining," then ¬P would represent "It is not raining."
    www.mathematics-monster.com/symbols/Not-Sign.…
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    List of logic symbols - Wikipedia

    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. Additionally, the subsequent columns contains an informal explanation, a short … See more

    Józef Maria Bocheński (1959), A Précis of Mathematical Logic, trans., Otto Bird, from the French and German editions, Dordrecht, South … See more

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  4. The "Not Sign (¬)" Symbol in Mathematics

    In the diverse realm of mathematical notation, the ¬ symbol, commonly referred to as the "Not Sign," stands out as a straightforward indicator of negation or denial. It's a pivotal tool for expressing logical operations, particularly in the fields of …

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    Negation
    Sign
  5. Truth tables – negation, conjunction, disjunction (“not”, “and”, “or”)

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    Truth table
    Conjunction
  6. Logical Connectives: Symbols, Meanings and Truth …

    Negation of proposition p is the proposition ¬p (read as "not p").

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    Truth table
    Negation
  7. Definition:Logical Not - ProofWiki

  8. Negation - Wikipedia

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    Truth Table
    Boolean Algebra
    Double Negation
    Classical Negation
  9. "P And Not(P)", as well as "[Not(P)] Or P"; also "If P, Then P"

  10. List of all Logic Symbols - GeeksforGeeks

    Jul 10, 2024 · Examples of Binary Logical Connectives symbols are as follows:

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    Symbol
  11. Formal logic - Propositional Calculus, Symbolic Notation, …

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    Calcularoe For Propositional Logic
    Formal Logic
  12. Truth Table/Examples/ (not p) and (not q) - ProofWiki