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A short proof that positive generation implies the Hanna Neumann Conjecture

Walter D Neumann
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Abstract

We give a very short proof that a subgroup of a free group that is positively generated cannot be part of a counterexample to the Generalized Hanna Neumann Conjecture.

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Walter D Neumann. 2007-02-13. A short proof that positive generation implies the Hanna Neumann Conjecture. https://arxiv.org/abs/math/0702395

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