structure
definition
ConnectionCert
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IndisputableMonolith.Gravity.Connection on GitHub at line 124.
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depends on
-
gamma -
mu -
sigma -
christoffel_from_metric -
Idx -
InverseMetric -
minkowski_inverse -
gamma -
sigma -
christoffel_from_metric -
gamma
used by
formal source
121
122/-! ## Certificate -/
123
124structure ConnectionCert where
125 torsion_free : ∀ (ginv : InverseMetric) (dg : Idx → Idx → Idx → ℝ),
126 (∀ mu nu sigma, dg mu nu sigma = dg mu sigma nu) →
127 ∀ rho mu nu,
128 (christoffel_from_metric ginv dg).gamma rho mu nu =
129 (christoffel_from_metric ginv dg).gamma rho nu mu
130 flat_vanish : ∀ rho mu nu : Idx,
131 (christoffel_from_metric minkowski_inverse (fun _ _ _ => 0)).gamma rho mu nu = 0
132
133theorem connection_cert : ConnectionCert where
134 torsion_free := christoffel_symmetric
135 flat_vanish := flat_christoffel_vanish
136
137end Connection
138end Gravity
139end IndisputableMonolith