Let $X$ be a pointed $G$-space, why is it true that there is a natural isomorphism $G_+\wedge_HX≅G/H_+\wedge X$, where $H$ is a subgroup of $G$? (Maybe some assumptions are needed on $H$, in which case, let me know!)
2026-02-23 01:33:07.1771810387
Identifying a balanced smash product of G-spaces
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