Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
This PR does some refactoring of the function application elaborator, and it improves `trace.Elab.app` tracing. It also improves asymptotic complexity by more carefully substituting arguments into the function's type and by changing how named argument dependency suppression is implemented. For dot notation, it now constructs base projections directly rather than using the app elaborator. It fixes a bug in the eta args feature where more explicit arguments would be turned into implicit arguments than expected, and it improves expected type propagation by following the rules from the main app elaborator. |
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| lean-toolchain | ||
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