22 Nov
2009
22 Nov
'09
10:32 a.m.
On Sat, Nov 21, 2009 at 21:08 Felipe Lessa wrote:
Most definitions, if not all, are just the corresponding free theorems (meaning roughly that the definition follows from the type because that's the only definition that doesn't have undefined's).
Question: Is it correct to paraphrase Felipe's description as follows: In Haskell the *term theorems for free* means roughly that the definition of a class, instance or a function follows from the supplied types because they are the only types that don’t have undefined argumens or undefined return types. Regards, Pat