Theorems · Definition · commutative algebra

Ideal.comap

{R : Type u} →
  {S : Type v} →
    {F : Type u_1} →
      [inst : Semiring R] →
        [inst_1 : Semiring S] → [inst_2 : FunLike F R S] → F → [RingHomClass F R S] → Ideal S → Ideal R

I.comap f is the preimage of I under f.

Defined in

Mathlib.RingTheory.Ideal.Maps

Cited by

443 results in Mathlib

Foundations

Depth 17 from the axioms, rests on 194 definitions · uses propext

Assumes

SemiringSemiringFunLikeRingHomClass