Besonderhede van voorbeeld: -2691057587257953373

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Author: Literature

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German^[de]

(I) Klar nach Definition. (2) Sei ~ : P ~ E projektive Hülle des einfachen Moduls E.

English^[en]

Proof. (1) Clear by definition. (2) Let g:P~E be the projective cover of a simple module E.

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