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Dependent Pairs Syntax unsoundly ignores refinements #2274

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nikivazou opened this issue Mar 21, 2024 · 0 comments

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nikivazou commented Mar 21, 2024

For example, the below is SAFE:

{-@ neg :: x:{v:Int | 0 <= v} -> (y::{v:Int | 0 <= v}, {v:() | y < x}) @-}
neg :: Int -> (Int, ())
neg x = (x - 1, ())

But also the below (i.e., refinements are totally ignored)

{-@ neg :: x:{v:Int | 0 <= v} -> (y::{v:Int | false}, {v:() | y < x}) @-}
neg :: Int -> (Int, ())
neg x = (x - 1, ())

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