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theorem proved term proof

regular_not_flat

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formal statement (Lean)

 201theorem regular_not_flat (R : RegularTet) : ¬ IsFlat R.toTetEdges R.cmData := by

proof body

Term-mode proof.

 202  unfold IsFlat
 203  rw [regular_cm_value_eq]
 204  have := regular_cm_positive R
 205  rw [regular_cm_value_eq] at this
 206  linarith
 207
 208/-! ## §6. Cayley-Menger Certificate -/
 209
 210/-- Packages the results of Phase C1. -/

used by (2)

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depends on (11)

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