Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
b7e220039f
This PR adds a hint to the "invalid projection" message suggesting the correct nested projection for expressions of the form `t.n` where `t` is a tuple and `n > 2`. This feature was originally proposed by @nomeata in #8986. |
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