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def definition def or abbrev

sphereVolume

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formal statement (Lean)

  83noncomputable def sphereVolume (radius : ℝ) : ℝ := (4/3) * π * radius^3

proof body

Definition body.

  84
  85/-- **THEOREM**: Information scales as R², not R³.
  86    This is surprising because you'd expect interior degrees of freedom ~ R³. -/

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