It is possible to prove things involving floats, you just have to addionally trust a small set of axioms on floats. See https://github.com/schildep/verified-3d-

It is possible to prove things involving floats, you just have to addionally trust a small set of axioms on floats. See https://github.com/schildep/verified-3d-mesh-intersection#performance https://github.com/schildep/verified-3d-mesh-intersection#pe... Don't know if there is something like this in Lean. But there is https://flocq.gitlabpages.inria.fr https://flocq.gitlabpages.inria.fr