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Negation: At-least {PrepTest 6 Section 2 Question 15}

Hopeful9812Hopeful9812 Member
edited June 2019 in Logical Reasoning 872 karma

Hi All-
When negating answer choice C -> is this interpretation correct? “One eminent scientist trained by J.J. Thomson was not a creative researcher before coming to study with him. OR -> More than one eminent scientist trained by J.J. Thomson was not a creative researcher before coming to study with him.” The “at-least” in answer choice C is throwing me off. Thank you in advance!

Comments

  • LivinLaVidaLSATLivinLaVidaLSAT Alum Member
    711 karma

    To negate "at least one" change to "not at least one" = none.
    So the negation is: None of them was not a creative researcher
    Get rid of the double negative: All of them were a creative researcher

    I hope that helps.

  • Hopeful9812Hopeful9812 Member
    872 karma

    Yes, this is very helpful - thank you @LivinLaVidaLSAT!

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