[mercury-users] Re: Visual Programming

[Juergen Pfitzenmaier]

Samuel Sean Watkins wrote:
>  In my opinion, the 'promises' of commutativity (axioms, I guess) which were
>  mentioned recently are really just an artifact of an inexpressive notation
>  - in fact, addition and multiplication each operate on a bag of numbers,
>  and bags aren't ordered, so commutativity is implicit.

Be carefule. Orderings and commutativity are different concepts. Even though
they influence each other they have to be seen independent.

pfitzen
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