A Gentle Introduction to Haskell, Version 98| www.haskell.org
A Gentle Introduction to Haskell, Version 98| www.haskell.org
A Gentle Introduction to Haskell, Version 98| www.haskell.org
A Gentle Introduction to Haskell, Version 98| www.haskell.org
Some typecheckers understand dynamic type tests, thus avoiding downcasting.| Varun Ramesh's Blog