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Author

Alexander Steen

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Preprint Sep 2026

Formal Verification of Proofs from Automated Theorem Provers for Higher-Order Logic

The resulting prototype reconstructs about 80% of generated proof steps automatically, making Leo-III the first higher-order automated theorem prover to support independently checkable proof reconstruction and providing a basis for cross-system reuse.

Melanie Taprogge, F. Blanqui, Alexander Steen · 1 citation

A light-weight proof checker for TSTP refutations

A proof checker called Nörgler is introduced that builds upon and extends the established approach pioneered by GDV and supports checking propositional, (untyped and typed) first-order, and higher-order refutations represented in TSTP.

Melanie Taprogge, H. Sariyanto, Alexander Steen · 1 citation

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