pith. machine review for the scientific record. sign in
theorem proved term proof

xiMap_ne_zero

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)

  53theorem xiMap_ne_zero (σ : ℝ) : xiMap σ ≠ 0 := (xiMap_pos σ).ne'

proof body

Term-mode proof.

  54
  55/-- The critical line maps to x = 1, the unique minimum of J. -/

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.