4 ms·

oneloop, your comment looks helpful but you are hell-banned, you may want to email HN to be reinstated. -- Edit - he's been reinstated.

• chmartin 11y ago
  what does hell-banned mean?
  • ximeng 11y ago
    Comments are marked as dead (can only be seen by people with showdead set in their profile), but appear visible to the user so that they may not realise why nobody responds to them or upvotes their comments. Normally a punishment for bad behaviour or poor commenting, but seems inappropriate in this case.
• selimthegrim 11y ago
  His comment below about a semigroup is absolutely correct, if that helps his case any. Qualifications: I studied RG in classes at Santa Barbara