Mathlib Map

Structures · Algebra

IsModuleFiltration

For F satisfying IsRingFiltration F F_lt in a semiring R and σM a family of subsets of an R-module M, an increasing series FM in σM is a module filtration if IsFiltration F F_lt and the pointwise scalar multiplication of F i and FM j is in F (i +ᵥ j). The index set ιM for the module can be more general, however usually we take ιM = ι.

Defined in
Mathlib.RingTheory.FilteredAlgebra.Basic
Shape
4 explicit arguments

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