Groupprops:Article

An article in Groupprops could be any of the following:


 * A definition article: This defines a term and may give further details about the term or the concept it represents
 * A fact article: This gives a fact which may be a lemma, theorem, proposition, corollary or just a plain fact. It may or may not give a proof of the fact.
 * A survey article: This provides a general introduction to a particular area of way of thinking or formalism within the subject
 * A real-world entity article: This is about a particular real-world entity, which could be a person, a journal, a conference, a book.