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Version 2.2-dev

The library has been tested using Agda 2.7.0.

Highlights

Bug-fixes

  • Removed unnecessary parameter #-trans : Transitive _#_ from Relation.Binary.Reasoning.Base.Apartness.

Non-backwards compatible changes

Minor improvements

Deprecated modules

Deprecated names

  • In Algebra.Properties.CommutativeMagma.Divisibility:

    ∣-factors    ↦  x|xy∧y|xy
∣-factors-≈  ↦  xy≈z⇒x|z∧y|z

  • In Algebra.Properties.Magma.Divisibility:

    ∣-respˡ   ↦  ∣-respˡ-≈
∣-respʳ   ↦  ∣-respʳ-≈
∣-resp    ↦  ∣-resp-≈

* In `Algebra.Solver.CommutativeMonoid`:
 ```agda
 normalise-correct  ↦  Algebra.Solver.CommutativeMonoid.Normal.correct
 sg                 ↦  Algebra.Solver.CommutativeMonoid.Normal.singleton
 sg-correct         ↦  Algebra.Solver.CommutativeMonoid.Normal.singleton-correct

  • In Algebra.Solver.IdempotentCommutativeMonoid:

    flip12             ↦  Algebra.Properties.CommutativeSemigroup.xy∙z≈y∙xz
distr              ↦  Algebra.Properties.IdempotentCommutativeMonoid.∙-distrˡ-∙
normalise-correct  ↦  Algebra.Solver.IdempotentCommutativeMonoid.Normal.correct
sg                 ↦  Algebra.Solver.IdempotentCommutativeMonoid.Normal.singleton
sg-correct         ↦  Algebra.Solver.IdempotentCommutativeMonoid.Normal.singleton-correct

  • In Algebra.Solver.Monoid:

    homomorphic        ↦  Algebra.Solver.Monoid.Normal.comp-correct
normalise-correct  ↦  Algebra.Solver.Monoid.Normal.correct

  • In Data.List.Relation.Binary.Permutation.Setoid.Properties:

    split  ↦  ↭-split

    with a more informative type (see below).

  • In Data.Vec.Properties:

    ++-assoc _      ↦  ++-assoc-eqFree
++-identityʳ _  ↦  ++-identityʳ-eqFree
unfold-∷ʳ _     ↦  unfold-∷ʳ-eqFree
++-∷ʳ _         ↦  ++-∷ʳ-eqFree
∷ʳ-++ _         ↦  ∷ʳ-++-eqFree
reverse-++ _    ↦  reverse-++-eqFree
∷-ʳ++ _         ↦  ∷-ʳ++-eqFree
++-ʳ++ _        ↦  ++-ʳ++-eqFree
ʳ++-ʳ++ _       ↦  ʳ++-ʳ++-eqFree

New modules

  • Properties of IdempotentCommutativeMonoids refactored out from Algebra.Solver.IdempotentCommutativeMonoid:

    Algebra.Properties.IdempotentCommutativeMonoid

  • Refactoring of the Algebra.Solver.*Monoid implementations, via a single Solver module API based on the existing Expr, and a common Normal-form API:

    Algebra.Solver.CommutativeMonoid.Normal
Algebra.Solver.IdempotentCommutativeMonoid.Normal
Algebra.Solver.Monoid.Expression
Algebra.Solver.Monoid.Normal
Algebra.Solver.Monoid.Solver

    NB Imports of the existing proof procedures solve and prove etc. should still be via the top-level interfaces in Algebra.Solver.*Monoid.

  • Refactored out from Data.List.Relation.Unary.All.Properties in order to break a dependency cycle with Data.List.Membership.Setoid.Properties:

    Data.List.Relation.Unary.All.Properties.Core

  • Data.List.Relation.Binary.Disjoint.Propositional.Properties: Propositional counterpart to Data.List.Relation.Binary.Disjoint.Setoid.Properties

  • Data.List.Relation.Binary.Permutation.Propositional.Properties.WithK

Additions to existing modules

  • Properties of non-divisibility in Algebra.Properties.Magma.Divisibility:

    ∤-respˡ-≈ : _∤_ Respectsˡ _≈_
∤-respʳ-≈ : _∤_ Respectsʳ _≈_
∤-resp-≈  : _∤_ Respects₂ _≈_
∤∤-sym    : Symmetric _∤∤_
∤∤-respˡ-≈ : _∤∤_ Respectsˡ _≈_
∤∤-respʳ-≈ : _∤∤_ Respectsʳ _≈_
∤∤-resp-≈  : _∤∤_ Respects₂ _≈_

  • In Algebra.Solver.Ring

    Env : ℕ → Set _
Env = Vec Carrier

* In `Data.List.Membership.Setoid.Properties`:
 ```agda
 ∉⇒All[≉]       : x ∉ xs → All (x ≉_) xs
 All[≉]⇒∉       : All (x ≉_) xs → x ∉ xs
 Any-∈-swap     : Any (_∈ ys) xs → Any (_∈ xs) ys
 All-∉-swap     : All (_∉ ys) xs → All (_∉ xs) ys
 ∈-map∘filter⁻  : y ∈₂ map f (filter P? xs) → ∃[ x ] x ∈₁ xs × y ≈₂ f x × P x
 ∈-map∘filter⁺  : f Preserves _≈₁_ ⟶ _≈₂_ →
                  ∃[ x ] x ∈₁ xs × y ≈₂ f x × P x →
                  y ∈₂ map f (filter P? xs)
 ∈-concatMap⁺   : Any ((y ∈_) ∘ f) xs → y ∈ concatMap f xs
 ∈-concatMap⁻   : y ∈ concatMap f xs → Any ((y ∈_) ∘ f) xs
 ∉[]            : x ∉ []
 deduplicate-∈⇔ : _≈_ Respectsʳ (flip R) → z ∈ xs ⇔ z ∈ deduplicate R? xs

  • In Data.List.Membership.Propositional.Properties:

    ∈-AllPairs₂    : AllPairs R xs → x ∈ xs → y ∈ xs → x ≡ y ⊎ R x y ⊎ R y x
∈-map∘filter⁻  : y ∈ map f (filter P? xs) → (∃[ x ] x ∈ xs × y ≡ f x × P x)
∈-map∘filter⁺  : (∃[ x ] x ∈ xs × y ≡ f x × P x) → y ∈ map f (filter P? xs)
∈-concatMap⁺   : Any ((y ∈_) ∘ f) xs → y ∈ concatMap f xs
∈-concatMap⁻   : y ∈ concatMap f xs → Any ((y ∈_) ∘ f) xs
++-∈⇔          : v ∈ xs ++ ys ⇔ (v ∈ xs ⊎ v ∈ ys)
[]∉map∷        : [] ∉ map (x ∷_) xss
map∷⁻          : xs ∈ map (y ∷_) xss → ∃[ ys ] ys ∈ xss × xs ≡ y ∷ ys
map∷-decomp∈   : (x ∷ xs) ∈ map (y ∷_) xss → x ≡ y × xs ∈ xss
∈-map∷⁻        : xs ∈ map (x ∷_) xss → x ∈ xs
∉[]            : x ∉ []
deduplicate-∈⇔ : z ∈ xs ⇔ z ∈ deduplicate _≈?_ xs

  • In Data.List.Membership.Propositional.Properties.WithK:

    unique∧set⇒bag : Unique xs → Unique ys → xs ∼[ set ] ys → xs ∼[ bag ] ys

  • In Data.List.Properties:

    product≢0    : All NonZero ns → NonZero (product ns)
∈⇒≤product   : All NonZero ns → n ∈ ns → n ≤ product ns
concatMap-++ : concatMap f (xs ++ ys) ≡ concatMap f xs ++ concatMap f ys

  • In Data.List.Relation.Unary.Any.Properties:

    concatMap⁺ : Any (Any P ∘ f) xs → Any P (concatMap f xs)
concatMap⁻ : Any P (concatMap f xs) → Any (Any P ∘ f) xs

  • In Data.List.Relation.Unary.Unique.Setoid.Properties:

    Unique[x∷xs]⇒x∉xs : Unique S (x ∷ xs) → x ∉ xs

  • In Data.List.Relation.Unary.Unique.Propositional.Properties:

    Unique[x∷xs]⇒x∉xs : Unique (x ∷ xs) → x ∉ xs

  • In Data.List.Relation.Binary.Equality.Setoid:

    ++⁺ʳ : ∀ xs → ys ≋ zs → xs ++ ys ≋ xs ++ zs
++⁺ˡ : ∀ zs → ws ≋ xs → ws ++ zs ≋ xs ++ zs

  • In Data.List.Relation.Binary.Permutation.Homogeneous:

    steps : Permutation R xs ys → ℕ

  • In Data.List.Relation.Binary.Permutation.Propositional: constructor aliases

    ↭-refl  : Reflexive _↭_
↭-prep  : ∀ x → xs ↭ ys → x ∷ xs ↭ x ∷ ys
↭-swap  : ∀ x y → xs ↭ ys → x ∷ y ∷ xs ↭ y ∷ x ∷ ys

    and properties

    ↭-reflexive-≋ : _≋_ ⇒ _↭_
↭⇒↭ₛ          : _↭_  ⇒ _↭ₛ_
↭ₛ⇒↭          : _↭ₛ_ ⇒ _↭_

    where _↭ₛ_ is the Setoid (setoid _) instance of Permutation

  • In Data.List.Relation.Binary.Permutation.Propositional.Properties:

    Any-resp-[σ∘σ⁻¹] : (σ : xs ↭ ys) (iy : Any P ys) →
                   Any-resp-↭ (trans (↭-sym σ) σ) iy ≡ iy
∈-resp-[σ∘σ⁻¹]   : (σ : xs ↭ ys) (iy : y ∈ ys) →
                   ∈-resp-↭ (trans (↭-sym σ) σ) iy ≡ iy
product-↭        : product Preserves _↭_ ⟶ _≡_

  • In Data.List.Relation.Binary.Permutation.Setoid:

    ↭-reflexive-≋ : _≋_  ⇒ _↭_
↭-transˡ-≋    : LeftTrans _≋_ _↭_
↭-transʳ-≋    : RightTrans _↭_ _≋_
↭-trans′      : Transitive _↭_

  • In Data.List.Relation.Binary.Permutation.Setoid.Properties:

    ↭-split : xs ↭ (as ++ [ v ] ++ bs) →
          ∃₂ λ ps qs → xs ≋ (ps ++ [ v ] ++ qs) × (ps ++ qs) ↭ (as ++ bs)
drop-∷  : x ∷ xs ↭ x ∷ ys → xs ↭ ys

  • In Data.List.Relation.Binary.Pointwise:

    ++⁺ʳ : Reflexive R → ∀ xs → (xs ++_) Preserves (Pointwise R) ⟶ (Pointwise R)
++⁺ˡ : Reflexive R → ∀ zs → (_++ zs) Preserves (Pointwise R) ⟶ (Pointwise R)

  • In Data.List.Relation.Unary.All:

    search : Decidable P → ∀ xs → All (∁ P) xs ⊎ Any P xs

  • In Data.List.Relation.Binary.Subset.Setoid.Properties:

    ∷⊈[]   : x ∷ xs ⊈ []
⊆∷⇒∈∨⊆ : xs ⊆ y ∷ ys → y ∈ xs ⊎ xs ⊆ ys
⊆∷∧∉⇒⊆ : xs ⊆ y ∷ ys → y ∉ xs → xs ⊆ ys

  • In Data.List.Relation.Binary.Subset.Propositional.Properties:

    ∷⊈[]   : x ∷ xs ⊈ []
⊆∷⇒∈∨⊆ : xs ⊆ y ∷ ys → y ∈ xs ⊎ xs ⊆ ys
⊆∷∧∉⇒⊆ : xs ⊆ y ∷ ys → y ∉ xs → xs ⊆ ys

  • In Data.List.Relation.Binary.Subset.Propositional.Properties:

    concatMap⁺ : xs ⊆ ys → concatMap f xs ⊆ concatMap f ys

  • In Data.List.Relation.Binary.Sublist.Heterogeneous.Properties:

    Sublist-[]-universal : Universal (Sublist R [])

  • In Data.List.Relation.Binary.Sublist.Setoid.Properties:

    []⊆-universal : Universal ([] ⊆_)

  • In Data.List.Relation.Binary.Disjoint.Setoid.Properties:

    deduplicate⁺ : Disjoint S xs ys → Disjoint S (deduplicate _≟_ xs) (deduplicate _≟_ ys)

  • In Data.List.Relation.Binary.Disjoint.Propositional.Properties:

    deduplicate⁺ : Disjoint xs ys → Disjoint (deduplicate _≟_ xs) (deduplicate _≟_ ys)

  • In Data.List.Relation.Binary.Permutation.Propositional.Properties.WithK:

    dedup-++-↭ : Disjoint xs ys →
             deduplicate _≟_ (xs ++ ys) ↭ deduplicate _≟_ xs ++ deduplicate _≟_ ys

  • In Data.Maybe.Properties:

    maybe′-∘ : ∀ f g → f ∘ (maybe′ g b) ≗ maybe′ (f ∘ g) (f b)

  • New lemmas in Data.Nat.Properties:

    m≤n⇒m≤n*o : ∀ o .{{_ : NonZero o}} → m ≤ n → m ≤ n * o
m≤n⇒m≤o*n : ∀ o .{{_ : NonZero o}} → m ≤ n → m ≤ o * n

    adjunction between suc and pred

    suc[m]≤n⇒m≤pred[n] : suc m ≤ n → m ≤ pred n
m≤pred[n]⇒suc[m]≤n : .{{NonZero n}} → m ≤ pred n → suc m ≤ n

  • New lemma in Data.Vec.Properties:

    map-concat : map f (concat xss) ≡ concat (map (map f) xss)

  • In Data.Vec.Relation.Binary.Equality.DecPropositional:

    _≡?_ : DecidableEquality (Vec A n)

  • In Relation.Binary.Construct.Interior.Symmetric:

    decidable         : Decidable R → Decidable (SymInterior R)

    and for Reflexive and Transitive relations R:

    isDecEquivalence  : Decidable R → IsDecEquivalence (SymInterior R)
isDecPartialOrder : Decidable R → IsDecPartialOrder (SymInterior R) R
decPoset          : Decidable R → DecPoset _ _ _

  • In Relation.Nullary.Decidable:

    does-⇔  : A ⇔ B → (a? : Dec A) → (b? : Dec B) → does a? ≡ does b?
does-≡  : (a? b? : Dec A) → does a? ≡ does b?

  • In Relation.Unary.Properties:

    map    : P ≐ Q → Decidable P → Decidable Q
does-≐ : P ≐ Q → (P? : Decidable P) → (Q? : Decidable Q) → does ∘ P? ≗ does ∘ Q?
does-≡ : (P? P?′ : Decidable P) → does ∘ P? ≗ does ∘ P?′