theorem
proved
bandUpper_ratio
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IndisputableMonolith.Unification.RecognitionBandGeometry on GitHub at line 77.
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All declarations in this module, on Recognition.
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74 field_simp [phi_ne_zero]
75
76/-- At the upper boundary, `ρ/(1-ρ) = φ`. -/
77theorem bandUpper_ratio : rhoBandUpper / (1 - rhoBandUpper) = phi := by
78 rw [one_sub_rhoBandUpper_eq_rhoBandLower]
79 unfold rhoBandLower rhoBandUpper
80 field_simp [phi_ne_zero]
81
82theorem bandBoundaries_product : rhoBandLower * rhoBandUpper = phi⁻¹ ^ 3 := by
83 unfold rhoBandLower rhoBandUpper
84 ring
85
86end
87end RecognitionBandGeometry
88end Unification
89end IndisputableMonolith