Abstract
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.
Citation
Noam Greenberg. Antonio Montalbán. Richard A. Shore. "Generalized high degrees have the complementation property." J. Symbolic Logic 69 (4) 1200 - 1220, December 2004. https://doi.org/10.2178/jsl/1102022219
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