KASH3 Ref - IsInjective

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| ### Function IsInjective ( elt-mdl^mat X ) -> elt-alg^boo ### Description True iff the homomorphism X is injective. ### Examples x_m := Matrix(Z,2,3,[0,0,0,0,0,0]); IsInjective(x_m); x_m := Matrix(Z,2,3,[1,0,0,0,0,1]); IsInjective(x_m);
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