`dihedralAngleCert`

proved

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module: IndisputableMonolith.Geometry.DihedralAngle
domain: Geometry
line: 171 · github
papers citing: none yet

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IndisputableMonolith.Geometry.DihedralAngle on GitHub at line 171.

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depends on

formal source

 168  theta_in_range : ∀ d : DihedralAngleData, 0 ≤ d.theta ∧ d.theta ≤ Real.pi
 169  cos_theta_eq : ∀ d : DihedralAngleData, Real.cos d.theta = d.cosine
 170
 171theorem dihedralAngleCert : DihedralAngleCert where
 172  cube_is_right_angle := cube_dihedral_theta
 173  regular_tet_in_range := regular_tet_dihedral_in_open_interval
 174  cubic_flat_sum := cubic_lattice_flatSum
 175  cubic_deficit_zero := cubic_lattice_deficit_zero
 176  theta_in_range := fun d => ⟨theta_nonneg d, theta_le_pi d⟩
 177  cos_theta_eq := cos_theta
 178
 179end
 180
 181end DihedralAngle
 182end Geometry
 183end IndisputableMonolith

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