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theorem proved term proof

noble_gas_ea_zero

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formal statement (Lean)

  62theorem noble_gas_ea_zero (Z : ℕ) (h : isNobleGas Z) : eaProxy Z = 0 := by

proof body

Term-mode proof.

  63  simp only [eaProxy, distToClosure]
  64  exact noble_gas_at_closure Z h
  65
  66/-- Halogens have EA proxy = 1 (one electron completes shell). -/

depends on (11)

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