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language_emptiness (368B)


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