En mathématiques, un groupe abélien libre est un groupe abélien qui possède une base, c'est-à-dire une partie B telle que tout élément du groupe s'écrive de façon unique comme combinaison linéaire à coefficients entiers d'éléments de B.
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En mathématiques, un groupe abélien libre est un groupe abélien qui possède une base, c'est-à-dire une partie B telle que tout élément du groupe s'écrive de façon unique comme combinaison linéaire à coefficients entiers d'éléments de B.
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