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Mathematics 19 Online
OpenStudy (accidentalaichan):

Which of the following is not an element of the following set: A: {negative even integers} −4 −18 −100 −23

OpenStudy (anonymous):

They are all negative and all integers so you just need to check if one of them is not even.

OpenStudy (accidentalaichan):

Oh, duh *facepalms* I'm sorry, it was my mistake.

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