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Property Suggestion: Finite dimensional CW complex #1768

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@felixpernegger

We dont have to do this now (first lets deal with CW complex and weakly contractible etc), but this is a very common variant of a CW complex. I dont think we can encode it currently (unlike Finite CW complex).

A CW complex is finite dimensional iff the skeleta stabilise. Notably its nontrivial to prove this is preserved by homeomorphisms/well-defined.a

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  1. GeoffreySangston commented on May 1, 2026

    @GeoffreySangston
    Collaborator

    Would be nice to include the following space since I think it's one of the basic examples of a finite dimensional CW complex, and sort of fits in with the klein bottle, torus, and projective plane since its obtained by gluing the boundary of a single disk: https://en.wikipedia.org/wiki/Dunce_hat_(topology)

    It satisfies: Finite dimensional CW Complex + ~Locally Euclidean space with boundary + Contractible + ~Has a cut point

    Except for the ~Has a cut point part, that's also satisfied by spaces obtained by gluing a finite number of closed or half open intervals at the left endpoints.

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