Generalized high degrees have the complementation property

نویسندگان

  • Noam Greenberg
  • Antonio Montalbán
  • Richard A. Shore
چکیده

We show that if d ∈ GH1 then D(≤ d) has the complementation property, i.e. for all a < d there is some b < d such that a ∧ b = 0 and a ∨ b = d. §

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عنوان ژورنال:
  • J. Symb. Log.

دوره 69  شماره 

صفحات  -

تاریخ انتشار 2004