def definition def or abbrev

`planck_length_SI`

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

formal statement (Lean)

  47def planck_length_SI : ℝ := 1.616255e-35

Definition body.

  48
  49/-- Planck time in seconds (CODATA 2018).
  50    t_P = ℓ_P/c = 5.391247 × 10⁻⁴⁴ s. -/

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

planck_length_SI_pos in IndisputableMonolith.Cosmology.SIConversion decl_use
planck_to_meters in IndisputableMonolith.Cosmology.SIConversion decl_use
si_calibration_cert in IndisputableMonolith.Cosmology.SIConversion decl_use
SICalibrationCert in IndisputableMonolith.Cosmology.SIConversion decl_use