Mathematics, 25.06.2021 04:40 rclara34oxbrr9

Chứng minh R^n là một R-môdum khi R là một vành có đơn vị và n là một số nguyên dương

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Chứng minh R^n là một R-môdum khi R là một vành có đơn vị và n là một số nguyên dương...