Mathematicians working in algebraic graph theory call what mathematicians working in graph-theory *independent sets* by the name *cocliques, *and call *complete graphs *by the name *cliques. *Mathematicians working in category theory tend to call those *independent sets *by the name *free graph (*on said vertex set), and call *complete graphs* by the name *cofree graph * (on its vertex set). So there is sort-of a *hazardousness**=infelicity, *in that *coclique**free, *and* cliquecofree,* and it would be felicitous for the prefixes *co- *to co-occur.

(Note that not[ *hazardousness felicity *]*.*)

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