def
definition
def or abbrev
stabilityScore
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formal statement (Lean)
153def stabilityScore (s : Structure) (packing_weight coherence_weight : ℝ) : ℝ :=
proof body
Definition body.
154 packing_weight * packingEfficiencyApprox s + coherence_weight * eightTickCoherence s
155
156/-- With high coherence weight, BCC wins; with very high packing weight, FCC wins.
157 For FCC to beat BCC: 0.74p + 0.667c > 0.68p + 1.0c → 0.06p > 0.333c → p/c > 5.5
158 So we need packing weight over 5× the coherence weight. -/