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formal statement (Lean)
98noncomputable def planck_radiance (ν T : ℝ) : ℝ :=
proof body
Definition body.
99 2 * ν ^ 3 / (Real.exp (ν / T) - 1) -- in natural units hbar=c=kB=1
100
101/-- Planck spectrum is positive for T > 0, ν > 0. -/
used by (2)
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.
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for
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