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.”

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