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直積 ちょくせき集合 しゅうごうじゃなかった
chokusekishūgōjanakatta

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Noun
, 
Da Copula

The past negative form of 直積集合

1. Was not a direct product.; Wasn't a Cartesian product.

Past/Perfective
, 
Negative
, 
Mathematics

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直積集合じゃなかった

直積集合じゃなかった【ちょくせきしゅうごうじゃなかった】 Activity

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