This repository formalizes in Lean4 the groupoid model of HoTT.
A web version of the mathematics, lean4 documentation,
and a dependency graph on the progress of formalization can be found
here.
This could be the basis for a HoTT mode in Lean.
This repository relies on the formalization of polynomial functors.
To get the most recent changes of the polynomial functors repository, run lake update first in the terminal inside the VSCode.
You should see a message like
info: Poly: updating repository '././.lake/packages/Poly' to revision '7297691124d30c971ff69d691e6cbd35e9a5bcac'
To get mathlib cached .olean files run
lake exe cache get
and to get the cached files and override your potentially corrupted .olean files run
lake exe cache get!