Wyniki
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Four intervals of irreducible logics
Alexander Chagrov
Bulletin of the Section of Logic , 22 /4 (1993) s. 167-168 -
Some remarks about generalized post-completeness of extensions of K4
Alexander Chagrov
Bulletin of the Section of Logic , 23 /1 (1994) s. 27-29 -
A note on expressive power of iteration
Alexander Chagrov
Bulletin of the Section of Logic , 24 /4 (1995) s. 234-235