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Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
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Joachim Breitner 022b2e4d96
refactor: termination arguments as Expr, not Syntax (#3658) 
Before, the termination argument as inferred by `GuessLex` was passed
further
on as `Syntax`, to be elaborated later in `WF.Rel`.

This didn’t feel quite right anymore. In particular if we want to teach
`GuessLex` about guessing more complex termination arguments like
`xs.size -
i`, using `Expr` here is more natural.

So this introduces `TerminationArgument` based on an `Expr` to be used
here.

A side-effect of how the termination arguments are elaborated is that
the unused
variables linter will now look at `termination_by` variables, and that
parameters
past the colon are not even invisibly in scope, so `‹_›` will not find
them
See https://github.com/leanprover-community/mathlib4/pull/11370/files
for examples
of fixing these changes.
2024-03-14 23:51:53 +00:00
.github chore: CI: temporarily disable fsanitize build 2024-03-14 15:36:28 +01:00
doc feat: thread initialization for reverse FFI (#3632) 2024-03-07 17:02:47 +00:00
images
nix fix: split libInit_shared out of libleanshared (#3421) 2024-02-22 19:16:32 +00:00
script fix: C++ exceptions across shared libraries on Linux (#3500) 2024-02-26 10:35:11 +00:00
src refactor: termination arguments as Expr, not Syntax (#3658) 2024-03-14 23:51:53 +00:00
stage0 chore: update stage0 2024-03-13 21:15:48 -07:00
tests refactor: termination arguments as Expr, not Syntax (#3658) 2024-03-14 23:51:53 +00:00
.gitattributes chore: Do not hide stage0/src/stdlib_flags.h from diffs 2023-09-13 19:29:25 +02:00
.gitignore chore: update tests to account for .lake 2023-11-13 20:31:24 -05:00
.ignore chore: ignore stage0/ (for rg etc.) 2022-03-18 15:28:20 +01:00
CMakeLists.txt feat: embed and check githash in .olean (#2766) 2023-11-27 10:24:43 +00:00
CODEOWNERS feat: snapshot trees and language processors (#3014) 2024-03-14 13:40:08 +00:00
CONTRIBUTING.md doc: Adjust contributor's docs to squash merging (#2927) 2023-11-21 10:13:43 +00:00
default.nix doc: setup 2021-01-03 13:21:58 +01:00
flake.lock chore: Nix bump to LLVM 15 2023-07-28 10:56:54 +02:00
flake.nix chore: Nix: use strings instead of URL literals (#2172) 2023-03-28 10:10:24 +02:00
lean-toolchain doc: VS Code dev setup (#2961) 2023-11-30 08:35:03 +00:00
lean.code-workspace chore: add the lean4 extension to the vscode workspace (#3059) 2023-12-14 08:58:21 +00:00
LICENSE chore: remove LICENSE header that confused GitHub 2021-11-18 09:42:35 +01:00
LICENSES chore: add GMP license for now 2021-11-18 09:42:35 +01:00
README.md doc: remove nightly and other outdated references (#3027) 2024-01-25 13:53:36 +00:00
RELEASES.md feat: allow duplicate theorems to be imported 2024-03-13 12:57:41 -07:00
shell.nix chore: Nix bump to LLVM 15 2023-07-28 10:56:54 +02:00

README.md

This is the repository for Lean 4.

About

Installation

See Setting Up Lean.

Contributing

Please read our Contribution Guidelines first.

Building from Source

See Building Lean.