I am looking for an elementary reference, other than the original paper of Stasheff, for a proof of the following fact:
if $Y$ is an $A_{\infty}$ space, the singular chain complex of $Y$ is an $ A_{\infty}$-algebra.
A proof is also welcome.
2026-04-12 11:34:49.1775993689
An $A_{\infty}$ space produces an $ A_{\infty}$ algebra
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