External Links

    Journal: Math. Log. Q.

    Volume 31, Issue 21-23

    321 -- 332Andrea Cantini. On Weak Theories of Sets and Classes which are Based on Strict ∏
    333 -- 344Teodor Stepien. On Number of Lindenbaum's Oversystems of Propositional and Predicate Calculi
    345 -- 349Jörg Flum, Juan Carlos Martínez. χ-Local Operations for Topological Structures
    351 -- 355Evangelos Kranakis. Definable Partitions and the Projectum
    357 -- 362Jürgen Hauck. x, y)
    363 -- 368Karanbir S. Sarkaria. Formal Theories are Acyclic
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