EPISODE · Dec 3, 2022 · 7 MIN
開集合の共通部分が閉集合になる例
from すうがくのおやつ🍰 · host タイキ
∩(-1/n,1/n)={0} ∩(-1/n,1+1/n)=[0,1] ∪[1/n,2-1/n]=(0,2) #すうがくのおやつ #数学 #勉強 #レター募集中 #開集合 【応援】 PayPay ID→sgrtk ほしい物リスト→https://www.amazon.jp/hz/wishlist/ls/34GELVA9MOZX3?ref_=wl_share --- stand.fmでは、この放送にいいね・コメント・レター送信ができます。 https://stand.fm/channels/5f56277b6a9e5b17f7f4ee68
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開集合の共通部分が閉集合になる例
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