- Spa.Showable: port of Showable.agda (quoted strings, map format) for
output parity
- Spa.Analysis.Utils: eval_combine₂
- Spa.Lattice.AboveBelow.le_cases: order of the flat lattice by cases
- Spa.Analysis.Sign / Spa.Analysis.Constant: the four monotonicity
POSTULATES from the Agda files are now proved theorems (via le_cases);
interpretations, evaluator validity, analyze_correct per analysis
- Main + lake exe spa: runs both analyses on the Agda test program;
constant analysis folds unknown=0, sign analysis gives unknown=⊤
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- lean/ lake project pinned to Lean v4.17.0 + mathlib v4.17.0
- Spa.Lattice: fold monotonicity, FixedHeight/BoundedChains (LTSeries-based),
FiniteHeightLattice, chain-bottom-is-least; the rest of Lattice.agda,
Chain.agda and Equivalence.agda lift into mathlib (see LEAN_MIGRATION.md)
- Spa.Fixedpoint: gas-based least-fixpoint computation (doStep/fix/aFix)
- Spa.Isomorphism: FixedHeight transport along monotone inverse pairs
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
