English
TwoSidedIdeal R and TwoSidedIdeal R^{op} are in bijective, order-preserving correspondence.
Русский
Двусторонние идеалы R и R^{op} существуют в биективной, сохраняющей порядок корреспонденции.
LaTeX
$$opOrderIso : TwoSidedIdeal R \cong_o TwoSidedIdeal R^{op}$$
Lean4
/-- Two-sided-ideals of `A` and that of `Aᵒᵖ` corresponds bijectively to each other.
-/
@[simps]
def opOrderIso : TwoSidedIdeal R ≃o TwoSidedIdeal Rᵐᵒᵖ
where
toFun := op
invFun := unop
map_rel_iff' {I' J'} := by simpa [ringCon_le_iff] using RingCon.opOrderIso.map_rel_iff