content/tools/proof-assist/sasylf.md

+++ title = 'SASyLF' subtitle = 'Proof Assistant' links = [ { title = "Homepage", url = "https://www.cs.cmu.edu/~aldrich/SASyLF/", icon = 'fa-solid fa-home' }, { title = "Source Code", url = "https://github.com/boyland/sasylf", icon = 'fa-solid fa-code' }, ] applications = ["Theorem Prover"] developers = [] licenses = [] inputs = [] interfaces = ["CLI"] maintenance = ["Actively Maintained"] draft = false date = 2025-08-22 +++

SASyLF (pronounced "Sassy Elf") is an LF-based proof assistant specialized to checking theorems about programming languages and logics.