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lines changed Original file line number Diff line number Diff line change @@ -71,6 +71,11 @@ Additions to existing modules
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++⁺ˡ : Reflexive R → ∀ zs → (_++ zs) Preserves (Pointwise R) ⟶ (Pointwise R)
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```
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+ * In ` Data.Maybe.Properties ` :
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+ ``` agda
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+ maybe′-∘ : ∀ f g → f ∘ (maybe′ g b) ≗ maybe′ (f ∘ g) (f b)
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+ ```
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+
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* New lemmas in ` Data.Nat.Properties ` :
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``` agda
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m≤n⇒m≤n*o : ∀ o .{{_ : NonZero o}} → m ≤ n → m ≤ n * o
Original file line number Diff line number Diff line change @@ -97,6 +97,9 @@ maybe′-map : ∀ j (n : C) (f : A → B) ma →
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maybe′ j n (map f ma) ≡ maybe′ (j ∘′ f) n ma
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maybe′-map = maybe-map
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+ maybe′-∘ : ∀ {b} (f : B → C) (g : A → B) → f ∘ (maybe′ g b) ≗ maybe′ (f ∘ g) (f b)
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+ maybe′-∘ _ _ = maybe (λ _ → refl) refl
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+
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------------------------------------------------------------------------
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-- _<∣>_
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