English
The module topology coming from the action of the opposite ring Rᵐᵒᵖ on R is the same as R's topology.
Русский
Модульная топология, полученная от действия противоположного кольца Rᵐᵒᵖ на R, совпадает с топологией R.
LaTeX
$$$\text{IsModuleTopology } R^{\mathrm{mop}} R$ is given by the iso $\text{MulOpposite.opContinuousLinearEquiv } R^{\mathrm{mop}}$$$
Lean4
/-- The module topology coming from the action of the topological ring `Rᵐᵒᵖ` on `R`
(via `Semiring.toOppositeModule`, i.e. via `(op r) • m = m * r`) is `R`'s topology. -/
instance _root_.IsTopologicalSemiring.toOppositeIsModuleTopology : IsModuleTopology Rᵐᵒᵖ R :=
.iso (MulOpposite.opContinuousLinearEquiv Rᵐᵒᵖ).symm