this post was submitted on 26 Dec 2024
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Science Memes

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submitted 2 days ago by [email protected] to c/[email protected]
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[–] [email protected] 3 points 1 day ago (1 children)

for some reason to remember ∩ and ∪ when I first learned it in school I visualized a mirrored symbol on top. the ∩ looked like a X which represented an intersection, while ∪ looked like an O which represented a whole. for English ∪ already looks like a U which can be thought of as short for union. that would've been easier.

[–] [email protected] 3 points 1 day ago

ooh the mirror trick is quite handy. i don’t think i’ve heard that one before. i’ll keep that one in my back pocket in case i ever need it some day. i can’t remember exactly how i learned what they meant, but i think it was probably u for union and n for ntersection.