References
G. Grätzer,Universal Algebra. Springer Verlag, 1979.
G. Grätzer,Universal Algebra. Van Nostrand, 1968.
A. Levy,Basic Set Theory. Springer Verlag, 1979.
N. Németi andH. Andréka, Does SPK⊇PSK imply the axiom of choice? Comment. Math. Univ. Carolinae, To appear.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Andréka, H., Németi, I. HSP K is equational class, without the axiom of choice. Algebra Universalis 13, 164–166 (1981). https://doi.org/10.1007/BF02483831
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02483831