Abstract
Zygmunt Ratajczyk was a deep and subtle mathematician who, with mastery, used sophisticated and technically complex methods, in particular combinatorial and proof-theoretic ones. Walking always along his own paths and being immune from actual trends and fashions he hesitated to publish his results, looking endlessly for their improvement.
Citation
Roman Murawski. "The Contribution of Zygmunt Ratajczyk to the Foundations of Arithmetic." Notre Dame J. Formal Logic 36 (4) 502 - 504, Fall 1995. https://doi.org/10.1305/ndjfl/1040136911
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