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How to say x is not an element of a set and/or ask if it is

asked 2020-09-24 09:40:07 -0600

Cyrille gravatar image

I would like to know if there is are keyword to verify if x is an element or not of the set X ?

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answered 2020-09-24 11:34:13 -0600

FrédéricC gravatar image

updated 2020-09-24 12:12:10 -0600

Ben, juste x in X ? et x not in X aussi.

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Ok I was expecting !in. This is the reason why I have not found it by myself Thanks

Cyrille gravatar imageCyrille ( 2020-09-24 15:51:35 -0600 )edit

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Asked: 2020-09-24 09:40:07 -0600

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Last updated: Sep 24 '20