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MathCheck Engine 0.3.1
First public MathCheck Engine release.
Highlights:
- bounded integer evaluation, sums, counts, and minima
- complete finite-pair certificates
- explicit verdict taxonomy and digest-bound evidence
- opt-in fail-closed Linux isolation with Lean 4.23.0
- documented trust boundary and future contract roadmap
Compatibility: the Python distribution remains lean-kernel-verifier and the import remains lean_kernel_verifier throughout the 0.x line.
Validation: 70 tests and 42 subtests passed. The clean release gate passed twice with byte-identical wheels using Lean 4.23.0. The GitHub-hosted job is pending because the account billing lock prevented a runner from starting; no workflow step failed.