simplifying algebraic expressions

[DavidM]

On Tue, 26 Jun 2007 11:11:39 +0100, Robin Becker wrote:

> I have seen this sort of evolution strategy in the past and it's very wrong to 
> attempt to simplify outside the genetic framework. The implication is that you 
> know better than the overall fitness requirement. The additional expressions and 
> redundancies allow for extra mutation and combination possibilities which is a 
> good thing for the whole population. If you must, add the requirement to the 
> target ie give extra fitness points to organisms which perform efficiently.

I'm sorry, but there's something important I forgot to mention - I only
want to do the simplification *after* a winning successful organism has
evolved and satisfied the fitness function.