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開 かい集合 しゅうごうじゃありませんでした
kai shūgōjārimasendeshita

敬
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Noun
, 
Desu Copula

The polite, past negative form of 開集合

1. Was not an open set.; Wasn't an open set.

Past/Perfective
, 
Negative
, 
Polite
, 
Terminal Form
, 
Mathematics

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開集合じゃありませんでした

開集合じゃありませんでした【かいしゅうごうじゃありませんでした】 Activity

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