theorem
proved
term proof
quadratic1D_zero_valid
show as:
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formal statement (Lean)
67theorem quadratic1D_zero_valid : quadratic1DStrainLedger.isValid 0 :=
proof body
Term-mode proof.
68 ⟨quadratic1D_equilibrium, quadratic1D_ledger_closed 0⟩
69
70/-! ## Quadratic Octave -/
71
72/-- Observation channel: identity observation, quality = strain. -/