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Deduction over graphs under constraints : a soundness and completeness theorem Seyed-Kazem Lellahi, Nicolas Spyratos (1993) Diagrammes
Distributive laws for pseudomonads. Marmolejo, F. (1999) Theory and Applications of Categories [electronic only]
Doctrines whose structure forms a fully faithful adjoint string. Marmolejo, F. (1997) Theory and Applications of Categories [electronic only]