poly2.hs

module Poly0 () where

import Language.Haskell.Liquid.Prelude

myabs x    = if x `gt` 0 then x else 0 `minus` x

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myid3 x y  = y

x = choose 0 

prop_id6 = liquidAssertB (x' `geq` 0)
  where x' = myid3 [] $ myabs x