Polish Logic

“Polish Logic” refers to a book, an anthology of papers reflecting a school of thought originating in Poland and holding that a logical proposition doesn’t have to be either true or false, that it can, for instance, have a third value such as “unknown” (“three-valued logic”) or that there might be multiple possible values (“multi-valued logic”). Jan Łukasiewicz, a pioneer of this approach, was a professor at the University of Warsaw from 1920 until 1939 – in other words, during all of Leo’s time there.

Mechanism design grew out of a debate about the merits o “free markets” versus “planned economies.”

“The main participants in that debate included Lange (1938) and Lerner (1937, 1944) on one side, and von Mises (1920, 1935) and Hayek (1935, 1945) on the other.” [Designing Economic Mechanisms, by Leonid Hurwicz and Stanley Reiter, 2006, p. 1]

Mechanism design took a multi-valued approach to this polarized debate.

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