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  1. Aug 2021
  2. math.libretexts.org math.libretexts.org
    0.2: Mathematical Statements
    2
    1. AlexaPlayHello 23 Aug 2021
      In discrete mathematics, we almost always quantify over the natural numbers, 0, 1, 2, …, so let's take that for our domain of discourse here.

      Natural Numbers?? These is a whole number set :/

    2. AlexaPlayHello 21 Aug 2021
      We make no claim about the conclusion in situations when the hypothesis is false.

      Yet they make the implication statement true when hypothesis P is false :/

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    math.libretexts.org/Bookshelves/Combinatorics_and_Discrete_Mathematics/Discrete_Mathematics_(Levin)/0:_Introduction_and_Preliminaries/0.2:_Mathematical_Statements