Abstract
If is a semilattice with operators, then there is an implicational theory such that the congruence lattice is isomorphic to the lattice of all implicational theories containing .
Citation
J. B. Nation. "Lattices of Theories in Languages without Equality." Notre Dame J. Formal Logic 54 (2) 167 - 175, 2013. https://doi.org/10.1215/00294527-1960470
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