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language_emptiness (350B)


      1 # Language emptiness
      2 
      3 The [computational_problem] of deciding if a [formal_language] is [empty_language]
      4 
      5 - [automaton_emptiness]
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      7 Can be [undecidable] for some formalisms:
      8 - cf https://cstheory.stackexchange.com/q/21741
      9 
     10 Up: [computational_problem], [formal_language]
     11 
     12 See also: [universality_problem]
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     14 Aliases: emptiness testing, emptiness problem