Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
e59fd2927a
Moreover, we process the implicit arguments using at least the Semireducible
transparency mode. The idea is to make sure to reduce counterintuitive
behavior in rw and simp where the user believes a lemma is applicable
but it does not work because the implicit part fails to unify.
The modification above fixes the simplifier issues found by @kha when proving the
monadic laws.
This commit also improves constraints of the form
n =?= m
where n and m are big distinct numerals. The type_context fails quickly
for this kind of constraint even using transparency mode Semireducible.
We need this feature otherwise we timeout at
@eq char a b =?= @eq unsigned ?x ?y
Recall that
char := fin char_sz
unsigned := fin unsigned_sz
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| .gitignore | ||
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| .travis.yml.in | ||
| LICENSE | ||
| README.md | ||
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About
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- Theorem Proving in Lean
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