Re: on alpha conversion

> x stands for *the* x-axis, changing it to y or even z would change the
> meaning 

Such variables are free variables, if you used <ci>x</ci> in that sense
and used it as a bound variable, you'd be wrong.

> In summary, alpha conversion is dangerous for projects like WebALT, 
Not if the variable has been explictly marked up by the author of the
expression as being bound.

David

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Received on Tuesday, 26 May 2009 08:25:31 UTC