pith. machine review for the scientific record. sign in
def definition def or abbrev

enProxy

show as:
view Lean formalization →

No prose has been written for this declaration yet. The Lean source and graph data below render without it.

generate prose now

formal statement (Lean)

  36def enProxy (Z : ℕ) : ℝ :=

proof body

Definition body.

  37  if Z = 0 then 0
  38  else if distToNextClosure Z = 0 then 0  -- Noble gases undefined
  39  else (1 : ℝ) / ((distToNextClosure Z : ℝ) + 1) * (1 / (shellNumber Z : ℝ))
  40
  41/-- Simplified EN ranking: valenceElectrons / periodLength.
  42    Higher valence fraction = higher EN (within same shell). -/

used by (4)

From the project-wide theorem graph. These declarations reference this one in their body.

depends on (7)

Lean names referenced from this declaration's body.