Montero De Juan, Francisco JavierMendel, MaxBarro, S.Sobrino, A.Bugarin, A.2023-06-202023-06-20199884-8121-673-9https://hdl.handle.net/20.500.14352/60924Verdegay's paper 'Problemas de decision en ambiente difuso', published in Trabajos de Estadistica e Investigacion Operativa, was one of the rst fuzzy papers appeared in the official Journal of the national Society of Statistics and Operational Research (S.E.I.O.). In his paper, Prof. Verdegay pointed out that a problem stated in fuzzy terms should allow a fuzzy solution. On the basis of such a simple argument we shall develope the right way we think Bayesian criticism to Fuzzy Sets should be understood. There is no room in the Bayesian model for fuzzy decisions but for acts, and acts are always crisp.engbook partopen access519.8Fuzzy Sets TheoryDecision MakingProbability TheoryInvestigación operativa (Matemáticas)1207 Investigación Operativa