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  1.  20
    (1 other version)Dual counterparts of Lukasiewicz sentential calculi.Grzegorz Malinowski & Maciej Spasowski - 1972 - Bulletin of the Section of Logic 1 (3):2-7.
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  2.  28
    Some connections between Cn, Cn− 1, dCn.Maciej Spasowski - 1973 - Bulletin of the Section of Logic 2 (1):53-56.
  3.  21
    The degrees of completeness of dual counterparts of Lukasiewicz sentential calculi.Maciej Spasowski - 1975 - Bulletin of the Section of Logic 4 (4):163-167.
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