`secondMagicNumber`

definition

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module: IndisputableMonolith.Physics.NuclearPhysicsDepthFromRS
domain: Physics
line: 34 · github
papers citing: none yet

open explainer

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open lean source

IndisputableMonolith.Physics.NuclearPhysicsDepthFromRS on GitHub at line 34.

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explainer page

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used by

formal source

  31/-- Nuclear magic numbers: 2, 8, 20, 28, 50, 82, 126.
  32    8 = 2³, 82 < gap45 × 2 = 90. -/
  33def firstMagicNumber : ℕ := 2
  34def secondMagicNumber : ℕ := 8
  35theorem secondMagic_eq_2cubed : secondMagicNumber = 2 ^ 3 := by decide
  36
  37structure NuclearPhysicsDepthCert where
  38  five_categories : Fintype.card NuclearStructureCategory = 5
  39  second_magic_cube : secondMagicNumber = 2 ^ 3
  40
  41def nuclearPhysicsDepthCert : NuclearPhysicsDepthCert where
  42  five_categories := nuclearStructureCategoryCount
  43  second_magic_cube := secondMagic_eq_2cubed
  44
  45end IndisputableMonolith.Physics.NuclearPhysicsDepthFromRS

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