SCHREIER REFINEMENT THEOREM
In mathematics, the 'Schreier refinement theorem' of group theory states that any two normal series of subgroups, ending with the trivial group, have equivalent refinements.
The 'Schreier refinement theorem' provides an elegant proof of the Jordan-Holder theorem in group theory.
The 'Schreier refinement theorem' provides an elegant proof of the Jordan-Holder theorem in group theory.
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