In Haskell, the type system is quite detailed. From a theoretical point of view, it comes from typed Lambda calculus, introduced in 1930 by Alfonso Church,1,2 where the types are automatically deducted from the way the objects are processed. Such programming languages are statically typed. More precisely, the processing is enforced by and based on the rules of a mathematical type system.
A
type system
is a set of rules used in a programming language to organize, build, and handle the types that ...
