[isabelle-dev] An ARBITRARY question

[Florian Haftmann]

>> I wonder whether it is wise to have three of these. People are going to
>> attach more significance to them than they deserve. I am inclined to
>> think that we should get rid of arbitrary.
>> Larry

I also think that two would be better than three;  technically
"undefined" is the same as "arbitrary", and IMHO only one one variant
should persist.

	Florian

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