Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
200f65649a
This PR shows `HashSet.ofList l ~m l.foldl (init := ∅) fun acc a => acc.insert a` (which is "just" the definition). We also include the analogous statement about `insertMany`, and prove this lemmas for dependent hash maps, normal hash maps, hash sets, as well as the raw and extensional versions, and of course we also give the corresponding tree map statements. |
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| CONTRIBUTING.md | ||
| flake.lock | ||
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| lean-toolchain | ||
| lean.code-workspace | ||
| LICENSE | ||
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