def
definition
relaxationTime
show as:
view math explainer →
open explainer
Read the cached plain-language explainer.
open lean source
IndisputableMonolith.Chemistry.GlassTransition on GitHub at line 115.
browse module
All declarations in this module, on Recognition.
explainer page
depends on
used by
formal source
112-/
113
114/-- Relaxation time scaling with φ. -/
115def relaxationTime (τ₀ : ℝ) (n : ℕ) : ℝ := τ₀ * Constants.phi ^ n
116
117/-- Relaxation time is positive. -/
118theorem relaxation_pos (τ₀ : ℝ) (hτ : 0 < τ₀) (n : ℕ) :
119 0 < relaxationTime τ₀ n := by
120 dsimp [relaxationTime]
121 apply mul_pos hτ
122 exact pow_pos Constants.phi_pos n
123
124/-! ## Falsification Criteria
125
126The glass transition derivation is falsifiable:
127
1281. **Kauzmann ratio**: If Tg/Tm deviates significantly from 2/3
129
1302. **Fragility universality**: If fragility doesn't decay with k
131
1323. **φ-scaling**: If relaxation times don't follow φ^n pattern
133-/
134
135end
136
137end GlassTransition
138end Chemistry
139end IndisputableMonolith