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theorem proved term proof

three_generations_from_dimension

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formal statement (Lean)

  51theorem three_generations_from_dimension :
  52    face_pairs Foundation.DimensionForcing.D_physical = 3 := by

proof body

Term-mode proof.

  53  unfold face_pairs Foundation.DimensionForcing.D_physical
  54  rfl
  55
  56/-! ## No Fourth Generation -/
  57
  58/-- For D = 3, there cannot be 4 face-pairs (by definition). -/

depends on (8)

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