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def definition def or abbrev

Admissible

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formal statement (Lean)

  84def Admissible [HasHodge α] (M : Medium α) : Prop := 0 < M.eps ∧ 0 < M.mu

proof body

Definition body.

  85
  86/-- Positivity of the Hodge energy density for admissible media, provided the
  87    instance supplies `star2_psd`. This is signature-agnostic and delegates the
  88    sign choice to the instance via `star2_psd`. -/

used by (37)

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