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May's generalized Seifert–van Kampen conjecture for $A_{\infty}$ -groupoids
May's generalized Seifert–van Kampen conjecture. The loop space functor from spaces to grouplike $\widehat{{\cal C}}$ -spaces takes pushouts of connected spaces to pushouts of…
Conjectureopenhigher-categories homotopy-theory seifert-van-kampenarXiv posted 2 days ago

May's generalized Seifert–van Kampen conjecture for A∞A_{\infty}A∞​-groupoids