Observed arrival · 2026-09-17

Testimony: Formal Theology in Lean

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A Lean 4 library that turns biblical arguments into machine-checkable structures with explicit, sourced premises.

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The library separates the validity of an encoded derivation from the truth of its textual, historical, or theological premises. Its examples include countermodels for rival premise packages and tests of whether individual assumptions are load-bearing. Argument pages are generated from Lean module docstrings and source definitions, while code and documentation use separate Apache 2.0 and CC BY 4.0 licences.

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