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In module theory, the direct sum of two submodules gives their coproduct in the category of modules.
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In module theory, the direct sum of two submodules gives their coproduct in the category of modules.
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Related words
direct sum
Noun
Japanese Meaning
数学において、アーベル群、位相空間、加群などの対象の直和、つまりそれらの対象を特定の方法で組み合わせる構造（余積としての性質を持つ場合もある）のことを指す。
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