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PL
The article highlights certain aspects of the set theory and topology in Puzyna’s work Theory of analytic functions (1899, 1900). In particular, the following notions are considered: derivative of a set, cardinality, connectedness, accumulation point, surface, genus of surface.
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PL
We provide one of the first surveys of results in the area of topology by representatives of the Lvov School of mathematics and mathematicians related to the University of Lvov. Viewed together, these results show the importance of this school in the creation of topology.
PL
We provide an outline of Stanisław Ulam’s results obtained in the framework of the widely understood Lvov school of mathematics.
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