Source history
Original source: arXiv:1801.00191v1
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The permanent identity and original source provenance are retained below.
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"kind": "Lemma",
"number": "3.15",
"title": "Lemma 3.15. If F is twist-like and B′ ≤LR B, then nF (B′) ≤nF (B). In particular, nF (B)",
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