English
Artinian property is defined as the well-foundedness of the submodule inclusion order.
Русский
Свойство артинности определяется как хорошо упорядоченность по включению подмодулей.
LaTeX
$$$\\mathrm{IsArtinian}(R,M) \\;\\Longleftrightarrow\\; \\mathrm{WellFounded}(\\,<\\, : \\mathrm{Submodule}_R M \\to \\mathrm{Submodule}_R M) $$$
Lean4
/-- `IsArtinian R M` is the proposition that `M` is an Artinian `R`-module,
implemented as the well-foundedness of submodule inclusion. -/
abbrev IsArtinian (R M) [Semiring R] [AddCommMonoid M] [Module R M] : Prop :=
WellFoundedLT (Submodule R M)