In automata theory (finite automata, pushdown automata, ...) and in complexity, there is a notion of "ambiguity". An automaton is ambiguous if there is a word $w$ with at least two distinct accepting ...
Define the following class of "circular" languages over a finite alphabet Sigma. Actually, the name already exists to denote a different thing it seems, used in the field of DNA computing. AFAICT, ...
I was wondering if the JSON spec defined a regular language. It seems simple enough, but I'm not sure how to prove it myself. The reason I ask, is because I was wondering if one could use regular ...