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Merge pull request #530 from mdimjasevic/more-prod-proj

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More: fixes an informal definition of swap×
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Philip Wadler 2020-10-14 20:57:41 +01:00 • committed by GitHub
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src/plfa/part2/More.lagda.md
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@ -206,7 +206,7 @@ construct to a calculus without the construct.
Here is a function to swap the components of a pair:
swap× : ∅ ⊢ A `× B ⇒ B `× A
swap× = ƛ z ⇒ `⟨ proj₂ z , proj₁ z ⟩
swap× = ƛ z ⇒ `⟨ `proj₂ z , `proj₁ z ⟩
## Alternative formulation of products