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theorem proved term proof

close_packed_coordination

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formal statement (Lean)

  69theorem close_packed_coordination : coordination .FCC = 12 ∧ coordination .HCP = 12 := by

proof body

Term-mode proof.

  70  constructor <;> rfl
  71
  72/-- BCC has lower packing than FCC/HCP. -/

depends on (2)

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