There is a language L such that L is not recursive (L is undecidable), yet L and its complement are both recursively enumerable.

 
  • 因為英文水平太差,所以急需援助下面這道英文的題目,不知道能不能給我翻譯一下,實(shí)在是理解不了: 題目:Consider the following statements: I.
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