Abstract
Among others we will see that the equational theory of ! dimensional representable polyadic equality algebras (RP EA!’s) is not schema axiomatizable. This result is in interesting contrast with the Daigneault-Monk representation theorem, which states that the class of representable polyadic algebras is nite schema-axiomatizable (and hence the equational theory of this class is nite schemaaxiomatizable, as well). We will also see that the complexity of the equational theory of RP EA! is also extremely high in the recursion theoretic sense. Finally, comparing the present negative results with the positive results of Ildik o Sain and Viktor Gyuris [10], the following methodological conclusions will be drawn: the negative properties of polyadic (equality) algebras can be removed by switching from what we call the \polyadic algebraic paradigm" to the \cylindric algebraic paradigm". 1
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