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lines changed Original file line number Diff line number Diff line change @@ -17,7 +17,6 @@ open import Relation.Binary.Definitions using (Reflexive; Trans)
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open import Relation.Binary.PropositionalEquality.Properties using (setoid)
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open import Data.Product.Base using (_,_; proj₁; proj₂)
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open import Function.Base using (_∘_)
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- open import Function.Properties.Surjection using (injective⇒section-cong)
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open import Function.Properties.Inverse
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using (Inverse⇒Bijection; Inverse⇒Equivalence)
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@@ -39,7 +38,7 @@ Bijection⇒Inverse bij = record
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{ to = to
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; from = section
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; to-cong = cong
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- ; from-cong = injective⇒ section-cong surjection injective
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+ ; from-cong = Symmetry. section-cong bijective Eq₁.refl Eq₂.sym Eq₂.trans
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; inverse = section-inverseˡ
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, λ y≈to[x] → injective (Eq₂.trans (section-strictInverseˡ _) y≈to[x])
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}
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