Verified90% confidenceFactExact time
Lean is an interactive theorem prover that requires every step of a proof to hold within a strict formal logic framework.
6
Sources
90%
Confidence
Long-term
Relevance
10/6/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedLean is an interactive theorem prover developed by Microsoft Research that allows mathematicians to write proofs in a formal language and have their logical correctness verified by a computer.78% similarVerifiedLean is based on dependent type theory and expresses proofs and programs in a unified manner.78% similarVerifiedLean requires that every step of derivation be written in a strict type-theoretic language, with logical completeness automatically verified by a computational kernel.76% similarVerifiedTheorem provers such as Lean, Coq, and Isabelle require every reasoning step to be translated into strict logical notation and automatically checked for compliance.74% similarUnverifiedLean and Coq are currently the most mainstream interactive theorem proving assistants.73% similar
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