A \(\Delta^{0}_{2}\)-poset with no positive presentation

DOI10.1007/S10469-012-9191-8zbMath1287.03093OpenAlexW2482597058MaRDI QIDQ1936280

J. Wallbaum

Publication date: 21 February 2013

Published in: Algebra and Logic (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s10469-012-9191-8

zbMATH Keywords

partially ordered setcomputably enumerable setlocal lattice

Mathematics Subject Classification ID

Recursively (computably) enumerable sets and degrees (03D25) Theory of numerations, effectively presented structures (03D45)

Cites Work

• Degree spectra and computable dimensions in algebraic structures
• Numbered distributive semilattices

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