Documentation

Mathlib.Algebra.Category.MonCat.Basic

Category instances for monoid, add_monoid, comm_monoid, and add_comm_monoid. #

We introduce the bundled categories:

def AddMonCat :
Type (u + 1)

The category of additive monoids and monoid morphisms.

Equations
Instances For
    def MonCat :
    Type (u + 1)

    The category of monoids and monoid morphisms.

    Equations
    Instances For
      abbrev AddMonCat.AssocAddMonoidHom (M : Type u_1) (N : Type u_2) [AddMonoid M] [AddMonoid N] :
      Type (max u_2 u_1)

      AddMonoidHom doesn't actually assume associativity. This alias is needed to make the category theory machinery work.

      Equations
      Instances For
        @[inline, reducible]
        abbrev MonCat.AssocMonoidHom (M : Type u_1) (N : Type u_2) [Monoid M] [Monoid N] :
        Type (max u_2 u_1)

        MonoidHom doesn't actually assume associativity. This alias is needed to make the category theory machinery work.

        Equations
        Instances For
          theorem AddMonCat.bundledHom.proof_2 {α : Type u_1} (I : AddMonoid α) :
          (fun {X Y : Type u_1} (x : AddMonoid X) (x_1 : AddMonoid Y) (f : AddMonCat.AssocAddMonoidHom X Y) => f) I I ((fun {α : Type u_1} (x : AddMonoid α) => AddMonoidHom.id α) I) = id
          theorem AddMonCat.bundledHom.proof_1 {α : Type u_1} {β : Type u_1} (Iα : AddMonoid α) (Iβ : AddMonoid β) ⦃a₁ : AddMonCat.AssocAddMonoidHom α β ⦃a₂ : AddMonCat.AssocAddMonoidHom α β (a : (fun {X Y : Type u_1} (x : AddMonoid X) (x_1 : AddMonoid Y) (f : AddMonCat.AssocAddMonoidHom X Y) => f) a₁ = (fun {X Y : Type u_1} (x : AddMonoid X) (x_1 : AddMonoid Y) (f : AddMonCat.AssocAddMonoidHom X Y) => f) a₂) :
          a₁ = a₂
          Equations
          • One or more equations did not get rendered due to their size.
          theorem AddMonCat.bundledHom.proof_3 {α : Type u_1} {β : Type u_1} {γ : Type u_1} (Iα : AddMonoid α) (Iβ : AddMonoid β) (Iγ : AddMonoid γ) (f : AddMonCat.AssocAddMonoidHom α β) (g : AddMonCat.AssocAddMonoidHom β γ) :
          g f = g f
          Equations
          • One or more equations did not get rendered due to their size.
          Equations
          instance MonCat.instMonoidα (X : MonCat) :
          Monoid X
          Equations
          Equations
          • AddMonCat.instCoeFunHomMonCatToQuiverToCategoryStructInstMonCatLargeCategoryForAllαAddMonoid = { coe := fun (f : X →+ Y) => f }
          Equations
          • MonCat.instCoeFunHomMonCatToQuiverToCategoryStructInstMonCatLargeCategoryForAllαMonoid = { coe := fun (f : X →* Y) => f }
          instance AddMonCat.instFunLike (X : AddMonCat) (Y : AddMonCat) :
          FunLike (X Y) X Y
          Equations
          instance MonCat.instFunLike (X : MonCat) (Y : MonCat) :
          FunLike (X Y) X Y
          Equations
          Equations
          instance MonCat.instMonoidHomClass (X : MonCat) (Y : MonCat) :
          MonoidHomClass (X Y) X Y
          Equations
          @[simp]
          theorem AddMonCat.coe_comp {X : AddMonCat} {Y : AddMonCat} {Z : AddMonCat} {f : X Y} {g : Y Z} :
          @[simp]
          theorem MonCat.coe_comp {X : MonCat} {Y : MonCat} {Z : MonCat} {f : X Y} {g : Y Z} :
          @[simp]
          theorem AddMonCat.forget_map {X : AddMonCat} {Y : AddMonCat} (f : X Y) :
          (CategoryTheory.forget AddMonCat).toPrefunctor.map f = f
          @[simp]
          theorem MonCat.forget_map {X : MonCat} {Y : MonCat} (f : X Y) :
          (CategoryTheory.forget MonCat).toPrefunctor.map f = f
          theorem AddMonCat.ext {X : AddMonCat} {Y : AddMonCat} {f : X Y} {g : X Y} (w : ∀ (x : X), f x = g x) :
          f = g
          theorem MonCat.ext {X : MonCat} {Y : MonCat} {f : X Y} {g : X Y} (w : ∀ (x : X), f x = g x) :
          f = g

          Construct a bundled AddMonCat from the underlying type and typeclass.

          Equations
          Instances For
            def MonCat.of (M : Type u) [Monoid M] :

            Construct a bundled MonCat from the underlying type and typeclass.

            Equations
            Instances For
              theorem AddMonCat.coe_of (R : Type u) [AddMonoid R] :
              (AddMonCat.of R) = R
              theorem MonCat.coe_of (R : Type u) [Monoid R] :
              (MonCat.of R) = R
              def AddMonCat.ofHom {X : Type u} {Y : Type u} [AddMonoid X] [AddMonoid Y] (f : X →+ Y) :

              Typecheck an AddMonoidHom as a morphism in AddMonCat.

              Equations
              Instances For
                def MonCat.ofHom {X : Type u} {Y : Type u} [Monoid X] [Monoid Y] (f : X →* Y) :

                Typecheck a MonoidHom as a morphism in MonCat.

                Equations
                Instances For
                  @[simp]
                  theorem AddMonCat.ofHom_apply {X : Type u} {Y : Type u} [AddMonoid X] [AddMonoid Y] (f : X →+ Y) (x : X) :
                  (AddMonCat.ofHom f) x = f x
                  @[simp]
                  theorem MonCat.ofHom_apply {X : Type u} {Y : Type u} [Monoid X] [Monoid Y] (f : X →* Y) (x : X) :
                  (MonCat.ofHom f) x = f x
                  @[simp]
                  theorem AddMonCat.zeroHom_apply (X : AddMonCat) (Y : AddMonCat) (x : X) :
                  0 x = 0
                  @[simp]
                  theorem MonCat.oneHom_apply (X : MonCat) (Y : MonCat) (x : X) :
                  1 x = 1
                  @[simp]
                  theorem AddMonCat.zero_of {A : Type u_1} [AddMonoid A] :
                  0 = 0
                  @[simp]
                  theorem MonCat.one_of {A : Type u_1} [Monoid A] :
                  1 = 1
                  @[simp]
                  theorem AddMonCat.add_of {A : Type u_1} [AddMonoid A] (a : A) (b : A) :
                  a + b = a + b
                  @[simp]
                  theorem MonCat.mul_of {A : Type u_1} [Monoid A] (a : A) (b : A) :
                  a * b = a * b
                  Equations
                  • AddMonCat.instGroupαAddMonoidOfToAddMonoidToSubNegAddMonoid = inst
                  Equations
                  • MonCat.instGroupαMonoidOfToMonoidToDivInvMonoid = inst
                  def AddCommMonCat :
                  Type (u + 1)

                  The category of additive commutative monoids and monoid morphisms.

                  Equations
                  Instances For
                    def CommMonCat :
                    Type (u + 1)

                    The category of commutative monoids and monoid morphisms.

                    Equations
                    Instances For
                      Equations
                      • AddCommMonCat.instCoeFunHomCommMonCatToQuiverToCategoryStructInstCommMonCatLargeCategoryForAllαAddCommMonoid = { coe := fun (f : X →+ Y) => f }
                      Equations
                      • CommMonCat.instCoeFunHomCommMonCatToQuiverToCategoryStructInstCommMonCatLargeCategoryForAllαCommMonoid = { coe := fun (f : X →* Y) => f }
                      instance AddCommMonCat.instFunLike (X : AddCommMonCat) (Y : AddCommMonCat) :
                      FunLike (X Y) X Y
                      Equations
                      instance CommMonCat.instFunLike (X : CommMonCat) (Y : CommMonCat) :
                      FunLike (X Y) X Y
                      Equations
                      @[simp]
                      theorem AddCommMonCat.coe_comp {X : AddCommMonCat} {Y : AddCommMonCat} {Z : AddCommMonCat} {f : X Y} {g : Y Z} :
                      @[simp]
                      theorem CommMonCat.coe_comp {X : CommMonCat} {Y : CommMonCat} {Z : CommMonCat} {f : X Y} {g : Y Z} :
                      @[simp]
                      theorem AddCommMonCat.forget_map {X : AddCommMonCat} {Y : AddCommMonCat} (f : X Y) :
                      (CategoryTheory.forget AddCommMonCat).toPrefunctor.map f = f
                      @[simp]
                      theorem CommMonCat.forget_map {X : CommMonCat} {Y : CommMonCat} (f : X Y) :
                      (CategoryTheory.forget CommMonCat).toPrefunctor.map f = f
                      theorem AddCommMonCat.ext {X : AddCommMonCat} {Y : AddCommMonCat} {f : X Y} {g : X Y} (w : ∀ (x : X), f x = g x) :
                      f = g
                      theorem CommMonCat.ext {X : CommMonCat} {Y : CommMonCat} {f : X Y} {g : X Y} (w : ∀ (x : X), f x = g x) :
                      f = g

                      Construct a bundled AddCommMon from the underlying type and typeclass.

                      Equations
                      Instances For

                        Construct a bundled CommMonCat from the underlying type and typeclass.

                        Equations
                        Instances For
                          theorem CommMonCat.coe_of (R : Type u) [CommMonoid R] :
                          (CommMonCat.of R) = R

                          Typecheck an AddMonoidHom as a morphism in AddCommMonCat.

                          Equations
                          Instances For

                            Typecheck a MonoidHom as a morphism in CommMonCat.

                            Equations
                            Instances For
                              @[simp]
                              theorem AddCommMonCat.ofHom_apply {X : Type u} {Y : Type u} [AddCommMonoid X] [AddCommMonoid Y] (f : X →+ Y) (x : X) :
                              @[simp]
                              theorem CommMonCat.ofHom_apply {X : Type u} {Y : Type u} [CommMonoid X] [CommMonoid Y] (f : X →* Y) (x : X) :
                              @[simp]
                              def MulEquiv.toMonCatIso {X : Type u} {Y : Type u} [Monoid X] [Monoid Y] (e : X ≃* Y) :

                              Build an isomorphism in the category MonCat from a MulEquiv between Monoids.

                              Equations
                              Instances For

                                Build an AddEquiv from an isomorphism in the category AddMonCat.

                                Equations
                                • One or more equations did not get rendered due to their size.
                                Instances For
                                  def CategoryTheory.Iso.monCatIsoToMulEquiv {X : MonCat} {Y : MonCat} (i : X Y) :
                                  X ≃* Y

                                  Build a MulEquiv from an isomorphism in the category MonCat.

                                  Equations
                                  • One or more equations did not get rendered due to their size.
                                  Instances For

                                    Build an AddEquiv from an isomorphism in the category AddCommMonCat.

                                    Equations
                                    • One or more equations did not get rendered due to their size.
                                    Instances For

                                      Build a MulEquiv from an isomorphism in the category CommMonCat.

                                      Equations
                                      • One or more equations did not get rendered due to their size.
                                      Instances For

                                        additive equivalences between AddMonoids are the same as (isomorphic to) isomorphisms in AddMonCat

                                        Equations
                                        Instances For
                                          def mulEquivIsoMonCatIso {X : Type u} {Y : Type u} [Monoid X] [Monoid Y] :

                                          multiplicative equivalences between Monoids are the same as (isomorphic to) isomorphisms in MonCat

                                          Equations
                                          Instances For

                                            additive equivalences between AddCommMonoids are the same as (isomorphic to) isomorphisms in AddCommMonCat

                                            Equations
                                            • One or more equations did not get rendered due to their size.
                                            Instances For

                                              multiplicative equivalences between CommMonoids are the same as (isomorphic to) isomorphisms in CommMonCat

                                              Equations
                                              • One or more equations did not get rendered due to their size.
                                              Instances For
                                                Equations
                                                • One or more equations did not get rendered due to their size.
                                                Equations
                                                • One or more equations did not get rendered due to their size.