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Martin Sleziak
Martin Sleziak
9:05 AM
List of top level tags:
17
A: Why are MO tags formatted as they are?

user9072The tags with a two-letter prefix are exactly those tags that correspond to a math subject class on arXiv. They serve as top-level tags. As a rule, each question should have at least one of these top-level tags. The formatting is mainly in place to distinguish them from usual tags; that it can ...

I do not see graph-theory there. Does this mean that questions from graph theory should have additionaly also one of top level tags? I guess typically co.combinatorics.
When I look at the question in this tag, out of 2386 questions tagged graph-theory only 920 have co.combinatorics.
I definitely do not plan to go on retagging spree. I am just asking about the correct tagging here at MO so that I can retag new questions (or questions which were bumped for some other reason) correctly.
 

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