[Haskell-beginners] (Implicit) equality testing using multiple function definitions

[David Place]

On Jul 18, 2011, at 9:05 PM, Arlen Cuss wrote:

> My take on this (may not be canonical, or even right!) is that pattern
> matching is matching on the shape of the object. 

Perhaps we could say that pattern matching implements Structural Induction rather than set equality.

> http://en.wikipedia.org/wiki/Structural_induction

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