Talk:Coherency (homotopy theory)
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凝聚性(同倫論)
[edit]數學中 特别於同倫論與(高等)範疇論 凝聚性是 等 式或 圖須滿足當它們成立「直到同倫」或「直到同構」的 標準。 那倆前置形容詞諸如「偽的(pseudo-)」和「不嚴格 (lax-)」 被用來指向 等 式以 凝聚 方式被削弱之 事實;擧例 偽-函子、偽代數。 ^ 凝聚 同構 某些處境裏 同構以壹個凝聚方式須被選。這經常由選取 典範 同構能被達致。但在壹些情況 諸如 預 曡( prestack) 那兒能有若干典範 同構且其等當中那裏可能無壹顯然的選擇。 實務上 凝聚 同構以削弱 等 式出現;例如嚴格結合性由經 凝聚 同構結合性能被替代。擧例經此個過程 人們 182.239.120.216 (talk) 22:30, 10 April 2022 (UTC)