`BookProof.ChapterEulerDensityMatrix.densityMatrix_eq` (t : ℝ) : densityMatrix t = !![Real.cos t ^ 2, Real.cos t * Real.sin t; Real.cos t * Real.sin t, Real.sin t ^ 2]

Initializing...

`BookProof.ChapterEulerDensityMatrix.densityMatrix_eq` (t : ℝ) : densityMatrix t = !![Real.cos t ^ 2, Real.cos t * Real.sin t; Real.cos t * Real.sin t, Real.sin t ^ 2] · Prove2Me