The ℓ and ρ parts of FstarPoints: ℓ(a) ≤ −159/100 uniformly on
[a₋, a₊] (FstarPointsRho/Ell.lean) and Rlow k ≤ ρ_{a₋}(x_{k+1}) for all 15 points
(FstarPointsRho/Points.lean, one declaration per point). Generic lemmas:
FstarPointsRho/Basic.lean.