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Apr 25, 2022 at 14:30 comment added Arshak Aivazian That is, indecomposable complexes with respect to the smash product simply do not exist. My argument was not correct only because I did not consider it necessary to verify the indecomposability of the point.
Apr 25, 2022 at 14:19 comment added Arshak Aivazian Kunneth theorem + long exact sequence of a pair, the question closed, thanks.
Apr 25, 2022 at 12:52 comment added Arshak Aivazian Thank you! I fail to understand: why are these spaces contractible?
Apr 25, 2022 at 12:12 history answered Neil Strickland CC BY-SA 4.0