• Title/Summary/Keyword: BCK-sequence

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UNSOLVED PROBLEMS IN BCK-ALGEBRAS

  • Dudek, Wieslaw A.
    • East Asian mathematical journal
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    • v.17 no.1
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    • pp.115-128
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    • 2001

  • We present old unsolved problems on BCK-sequences connected with convex congruences on BCK-algebras. We posed also some new problems on subalgebras.

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