The trivial action of a monoid on ZMod n #
The trivial action g • m = m of a monoid F on ZMod n, as a DistribMulAction. It is the
coefficient action that a statement about the cohomology of trivial ZMod n-coefficients installs
locally when no action of F appears in its conclusion; the statements of
TauCeti.Topology.Algebra.Group.Profinite.ProP.Relation.Rank that carry an action of F on
ZMod n as an instance together with the hypothesis that it is trivial then apply to it.
Main definitions #
TauCeti.trivialZModAction: the trivial action of a monoid onZMod n.
@[reducible, inline]
The trivial action g • m = m of a monoid F on ZMod n. It is the coefficient action of a
statement about the cohomology of trivial ZMod n-coefficients whose conclusion mentions no action
of F.
Equations
- TauCeti.trivialZModAction n F = { smul := fun (x : F) (m : ZMod n) => m, mul_smul := ⋯, one_smul := ⋯, smul_zero := ⋯, smul_add := ⋯ }