[m-dev.] Pretty printing non-canonical types

[Ralph Becket]

Ian MacLarty, Monday,  8 October 2007:
> 
> I'm not convinced.  You could easily create a function that generated a
> string from a T using format/8.  Say you called this function str.  Then
> you might have the goal 'str(X) = str(Y)' failing, even though X and Y
> are equal.  The problem is that the "viewer" of str(X) and str(Y) is not
> necessarily a person.  It might be the program.  The program won't give
> str(X) and str(Y) the same denotation, even though a human viewer might.

I was hoping you wouldn't say that...!
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