ONLINE RESEARCH QUESTIONS: SECTION 3.2 (PAGE 129)

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  • Who began the modern era of mathematical notation in logic?

  • When were the symbols of logic and set theory used today introduced?

  • Name three contributors to the introduction of the basic symbols of logic.

  • When was the tilde ~ indicating a negation first used and by whom ?

  • Name two places where you can find the symbol ∨ for disjunction.
    Who first used this symbol?

  • When was the conjunction symbol ∧ for "and" first used and by whom?
    See: jeff560.tripod.com/set.html .

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