Theorems · Theorem · commutative algebra
Subring.map_comap_eq
∀ {R : Type u} {S : Type v} [inst : NonAssocRing R] [inst_1 : NonAssocRing S] (f : R →+* S) (t : Subring S),
Subring.map f (Subring.comap f t) = t ⊓ f.range- Defined in
- Mathlib.Algebra.Ring.Subring.Basic
- Cited by
- 1 results in Mathlib
- Foundations
- Depth 24 from the axioms · uses propext, Classical.choice, Quot.sound
- Assumes
- NonAssocRingNonAssocRing
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites8
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- RingHomstatement and proof · cited by 10,189
- Subringstatement and proof · cited by 602
- NonAssocRingstatement and proof · cited by 483
- SetLike.coe_injectiveproof · cited by 374
- RingHom.rangestatement and proof · cited by 138
- Set.image_preimage_eq_inter_rangeproof · cited by 121
- Subring.mapstatement and proof · cited by 33
- Subring.comapstatement and proof · cited by 22
Cited by1
Results whose statement or proof uses this declaration.
- Subring.map_comap_eq_selfproof · cited by 1