Source history
Original source: arXiv:math/0608040v4
Detailed backend records are private. Public author/source status appears above.
The permanent identity and original source provenance are retained below.
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"title": "Proof. For 0 ≤i ≤n, let X(i) = X ×∆n ∆{n−i,...,n} ⊆X.",
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