Abstract
Motivated by a question of W. Rautenberg, we prove that any matrix that is term-equivalent to the well-known nonfinitely based matrix of A. Wroński is itself also nonfinitely based.
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Wroński, A., 'A three-element matrix whose consequence operator in not finitely based', Buletin of the Section of Logic PAN, Vol. 8(2), 68–71.
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Pałasińska, K. No Matrix Term-Equivalent to Wroński's 3-element Matrix is Finitely Based. Studia Logica 77, 413–423 (2004). https://doi.org/10.1023/B:STUD.0000039032.60684.88
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DOI: https://doi.org/10.1023/B:STUD.0000039032.60684.88