Metamath is a language for expressing formal proofs, which makes few assumptions on the underlying logic and is simple enough to support a wide variety of tools. See http://us.metamath.org/#faq.
Install Rust ([rustup.sh]), version 1.9.0 or later, then check out this repository and run:
cargo build --release
Alternatively using cargo install:
cargo install --git https://github.com/sorear/smetamath-rs
# $HOME/.cargo/bin/smetamath has been installed, use it as the binary in the following instructions
# The largest known Metamath database, and best test case
git clone https://github.com/metamath/set.mm
# One-shot verification using 4 threads
target/release/smetamath --timing --jobs 4 --split --verify set.mm/set.mm
# Incremental verification
(while sleep 5; do echo; done) | target/release/smetamath --timing --jobs 4 --split --repeat --trace-recalc --verify set.mm/set.mm
# then make small changes to the beginning, end, or middle of the DB and observe how behavior changes
Licensed under either of
- Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.