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開 かい集合 しゅうごうじゃなかったです
kai shūgōjanakattadesu

敬
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Noun
, 
Desu Copula

The polite, past negative form of 開集合

1. Was not an open set.

Past/Perfective
, 
Negative
, 
Polite
, 
Casual Register
, 
Mathematics

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開集合じゃなかったです

開集合じゃなかったです【かいしゅうごうじゃなかったです】 Activity

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