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The Słupecki criterion by duality

Eszter K. Horváth

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p. 5-11

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On exponentiation on n-ary hyperalgebras

František Bednařík ; Josef Šlapal

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p. 13-19

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On distributive trices

Kiyomitsu Horiuchi ; Andreja Tepavčević

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p. 21-29

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Cantor extension of a half lineary cyclically ordered group

Štefan Černák

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p. 31-46

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Generalized morphisms of abelian m-ary groups

Alexander M. Gal'mak

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p. 47-55

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Some properties of congurence relations on orthomodular lattices

Gerhard Dorfer

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p. 57-66

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The vector cross product from an algebraic point of view

Götz Trenkler

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p. 67-82

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Hypersubstitutions in orthomodular lattices

Ivan Chajda ; Helmut Länger

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p. 83-92

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Solution of Belousov's problem

Maks A. Akivis ; Vladislav V. Goldberg

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p. 93-103

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Balanced congruences

Ivan Chajda ; Günther Eigenthaler

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p. 105-114

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On the special context of independent sets

Vladimír Slezák

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p. 115-122

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Cardinalities of lattices of topologies of unars and some related topics

Anna Kartashova

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p. 129-137

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On the structure of halfdiagonal-halfterminal-symmetric categories with diagonal inversions

Hans-Jürgen Vogel

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p. 139-163

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Some modifications of congruence permutability and dually congruence regular varietie

Ivan Chajda ; Günther Eigenthaler

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p. 165-174

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The semantical hyperunification problem

Klaus Denecke ; Jörg Koppitz ; Shelly Wismath

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p. 175-200

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Minimal formations of universal algebras

Wenbin Guo ; K.P. Shum

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p. 201-205

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Maximal column rank preservers of fuzzy matrices

Seok-Zun Song ; Soo-Roh Park

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p. 207-218

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Tree transformations defined by hypersubstitutions

Sr. Arworn ; Klaus Denecke

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p. 219-227

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Congruence classes in Brouwerian semilattices

Ivan Chajda ; Helmut Länger

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p. 229-237

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Ring-like structures with unique symmetric difference related to quantum logic

Dietmar Dorninger ; Helmut Länger ; Maciej Maczyński

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p. 239-253

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The lattice of subvarieties of the biregularization of the variety of Boolean algebras

Jerzy Płonka

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p. 255-268

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