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

planckLength

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)

  38noncomputable def planckLength : ℝ := sqrt (hbar * G / c^3)

proof body

Definition body.

  39
  40/-- The Planck mass m_P = √(ℏc/G) ≈ 2.176 × 10⁻⁸ kg. -/

used by (7)

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

depends on (11)

Lean names referenced from this declaration's body.