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activeFraction
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IndisputableMonolith.Cosmology.VacuumUniformity on GitHub at line 35.
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32 unfold passiveFraction; norm_num
33
34/-- Active fraction complements passive to 1. -/
35noncomputable def activeFraction : ℝ := 1 - passiveFraction
36
37theorem fractions_sum : passiveFraction + activeFraction = 1 := by
38 unfold activeFraction; ring
39
40/-- Voxel symmetry: no distinguished location on the carrier.
41 This is the ℤ³ translation invariance from VoxelSymmetry. -/
42structure VoxelSymmetric (f : ℤ × ℤ × ℤ → ℝ) : Prop where
43 shift_invariant : ∀ (v d : ℤ × ℤ × ℤ), f (v.1 + d.1, v.2.1 + d.2.1, v.2.2 + d.2.2) = f v
44
45/-- Phase-locked energy is constant per voxel. -/
46noncomputable def phaseLockEnergy : ℝ := passiveFraction * E_coh
47
48/-- The vacuum energy density function is spatially uniform. -/
49theorem vacuum_energy_uniform :
50 VoxelSymmetric (fun _ => phaseLockEnergy) :=
51 ⟨fun _ _ => rfl⟩
52
53/-- The vacuum J-cost is non-negative (since passiveFraction > 0 and E_coh > 0). -/
54theorem vacuum_energy_pos : phaseLockEnergy > 0 := by
55 unfold phaseLockEnergy
56 exact mul_pos passive_fraction_pos E_coh_pos
57
58/-- Master certificate. -/
59structure VacuumUniformityCert where
60 passive_frac : passiveFraction = 11 / 16
61 fracs_sum : passiveFraction + activeFraction = 1
62 energy_pos : phaseLockEnergy > 0
63 uniform : VoxelSymmetric (fun _ => phaseLockEnergy)
64
65noncomputable def vacuumUniformityCert : VacuumUniformityCert where