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

Hopeful9812

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!

LivinLaVidaLSAT

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.

Hopeful9812

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