A Quillen theorem Bn for homotopy pullbacks
classification
🧮 math.AT
math.CT
keywords
homotopypullbackpullbacksquillentheoremcategoriesconditionsdiagram
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We prove an extension of the Quillen Theorem Bn for homotopy fibres to a similar result for homotopy pullbacks and use this to obtain sufficient conditions on a pullback diagram of categories to guarantee that it be a homotopy pullback.
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