Theorems · Definition · group theory
Function.Injective.addLeftCancelSemigroup
{M₁ : Type u_1} →
{M₂ : Type u_2} →
[inst : Add M₁] →
[inst_1 : AddLeftCancelSemigroup M₂] →
(f : M₁ → M₂) → Function.Injective f → (∀ (x y : M₁), f (x + y) = f x + f y) → AddLeftCancelSemigroup M₁A type endowed with + is an additive left cancel semigroup, if it admits an
injective map that preserves + to an additive left cancel semigroup.
- Defined in
- Mathlib.Algebra.Group.InjSurj
- Cited by
- 0 results in Mathlib
- Foundations
- Depth 9 from the axioms · uses no axioms
- Assumes
- AddAddLeftCancelSemigroup
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites4
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- AddSemigroupproof · cited by 136
- IsLeftCancelAddproof · cited by 72
- AddLeftCancelSemigroupstatement and proof · cited by 2
- Function.Injective.addSemigroupproof · cited by 0
Cited by3
Results whose statement or proof uses this declaration.
- FunLike.addLeftCancelSemigroupproof · cited by 0
- Function.Injective.addCancelCommMonoidproof · cited by 0
- Function.Injective.addLeftCancelMonoidproof · cited by 0