def
definition
tight_threshold
show as:
view math explainer →
open explainer
Generate a durable explainer page for this declaration.
open lean source
IndisputableMonolith.Gravity.SPARCFalsifier on GitHub at line 50.
browse module
All declarations in this module, on Recognition.
explainer page
depends on
used by
formal source
47/-- The tight threshold matching the RS prediction (median ~ 2.75).
48 If median chi2/dof > 3.0, the specific RS prediction is refuted
49 (though ILG as a framework might survive with different parameters). -/
50def tight_threshold : ℝ := 3.0
51
52/-- ILG is falsified if median chi2/dof exceeds the generous threshold. -/
53def ILG_falsified (median_chi2_dof : ℝ) : Prop :=
54 generous_threshold < median_chi2_dof
55
56/-- The RS-specific prediction is refuted if median > tight threshold. -/
57def RS_prediction_refuted (median_chi2_dof : ℝ) : Prop :=
58 tight_threshold < median_chi2_dof
59
60/-- If the median is below the generous threshold, ILG PASSES. -/
61def ILG_passes (median_chi2_dof : ℝ) : Prop :=
62 median_chi2_dof ≤ generous_threshold
63
64/-- The falsification criterion is decidable (for any real number). -/
65theorem falsification_decidable (x : ℝ) :
66 ILG_falsified x ∨ ILG_passes x := by
67 unfold ILG_falsified ILG_passes generous_threshold
68 exact le_or_gt x 5.0 |>.elim (Or.inr) (Or.inl)
69
70/-! ## RS Parameter Lock -/
71
72/-- The alpha parameter is locked to alphaLock ≈ 0.191. -/
73noncomputable def alpha_locked : ℝ := alphaLock
74
75/-- The mass-to-light ratio is locked to phi ≈ 1.618. -/
76noncomputable def upsilon_locked : ℝ := phi
77
78/-- The lag coupling is locked to phi^(-5) ≈ 0.090. -/
79noncomputable def clag_locked : ℝ := cLagLock
80