OAI/Algebra/Finitistic/Bar/RecursiveSuffixCoefficient.lean
6 declarations, 0 contain sorry, 0 declared as axioms
- theorem
OAI.DerivedBar.ParityBridge.coefficient_termCastline 26 - theorem
OAI.DerivedBar.ParityBridge.barSuffix_coefficient_zeroline 35Source documentation
The first X factor is killed by the exterior projection A -> D.
theorem barSuffix_coefficient_zero (V : ModuleCat.{u} D) (s i : ℕ) (e : V →ₗ[k] term k A N s) (v : ((XB).obj V).X i) : FreeBaseChange.coefficient (fstHom k D X) (term k A N (s+i)) (barSuffix k D X N V s i e v) = 0 := by …Mentions: OAI.DerivedBar.term, OAI.DerivedBar.FreeBaseChange.coefficient, OAI.DerivedBar.ParityBridge.barSuffix
- theorem
OAI.DerivedBar.ParityBridge.innerEmbedding_coefficient_of_posline 50Source documentation
The exterior endpoint vanishes at every positive suffix degree, including zero input summands when no X has yet been inserted.
theorem innerEmbedding_coefficient_of_pos (r n s : ℕ) (hs : r+n=s+1) (v : RecursiveTotal.flat B Z r n) : FreeBaseChange.coefficient (fstHom k D X) (term k A N s) (termCast k D X N hs (innerEmbedding k D X N r n v)) = 0 := by …Mentions: OAI.DerivedBar.RecursiveTotal.flat, OAI.DerivedBar.FreeBaseChange.coefficient, OAI.DerivedBar.term, OAI.DerivedBar.ParityBridge.termCast, OAI.DerivedBar.ParityBridge.innerEmbedding
- theorem
OAI.DerivedBar.ParityBridge.innerTotalEmbedding_coefficient_of_posline 76 - theorem
OAI.DerivedBar.ParityBridge.innerEmbedding_coefficient_zeroline 82 - theorem
OAI.DerivedBar.ParityBridge.innerTotalEmbedding_coefficient_zeroline 89