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theorem proved term proof

deltaStructural_D3

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formal statement (Lean)

 130theorem deltaStructural_D3 : deltaStructural 3 = 3 / 2 := by

proof body

Term-mode proof.

 131  unfold deltaStructural faceCount faceVertexCount
 132  norm_num
 133
 134/-- The axis-additive formula equals 3/2 at D = 3. -/

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