Author

Petros Markopoulos

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Jul 2026

Foundational Constraint Solving for Expressive Refinement Typing

FLEX is presented, a foundational Constrained Horn Clause (CHC) solver implemented in LEAN, that reduces the trusted base to the kernel alone, and allows using LEAN's entire proof ecosystem to verify low-level systems code, via three contributions.

J. Khan, Petros Markopoulos, Nicolás Lehmann et al. · arXiv.org · 0 citations