Anonymous user
Talk:Symmetric difference: Difference between revisions
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Er, no. I had other valid points.
As for what isn't a set, again, peruse the GAP, Pike, and Prolog programming entries (solutions). Whether or not the representation (of values and/or a SET) is a valid set or not doesn't reduce the fact that Rexx version 1 and 1.5, GAP, Pike, and Prolog entries correctly handle duplicates (or ''replicated values'', as Wiki uses). I used the SET dictated by ''note 1'' in the task's requirements as well as others solutions doing the same.
As for the '''translate''' that you used (above), it removes commas (''',
Once those characters are handled correctly, it's one small step to handle blanks and nulls. That's why the REXX versions 1 and 1.5 took extra precautions (more REXX code) to only ''strip'' those characters used as delimiters and not ''translate'' them out of existence. (well, translate them to blanks). Furthermore, the older REXX entries can also handle ''null'' values, which are legal in SETs. -- [[User:Gerard Schildberger|Gerard Schildberger]] ([[User talk:Gerard Schildberger|talk]]) 19:40, 16 December 2013 (UTC)
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