Enumeration Operators, Probability, Type Theory

9 October 2019
4:30 PM  Mendel Museum´s Augustinian Abbey Refectory at Mendel Square
Dana Stewart Scott is the emeritus Hillman University Professor of Computer Science, Philosophy, and Mathematical Logic at Carnegie Mellon University; he is now retired and lives in Berkeley, California. He received his Ph. D. in 1958 from Princeton and taught at the University of Chicago, University of California, Stanford, University of Oxford and Carnegie Mellon University. His research interests have been in computer science, mathematics, and philosophy.
His early joint work on automata theory with Michael Rabin earned them the ACM Turing Award in 1976, while his collaborative work with Christopher Strachey in the 1970s laid the foundations of modern approaches to the semantics of programming languages. He has worked also on set theory, model theory, modal logic, topology, and category theory.
Abstract
For a long time it has been known that enumeration operators on the powerset of the integers form a model of the λcalculus. More recently, the speaker realized that wellknown methods allow for the adjunction of random variables to the model. Also other wellknown ideas can expend the basic model into a model for MartinLöf type theory. Some recent work with a group of collaborators combines the two approaches by invoking Booleanvalued models. The talk will address the question of how to give this natural modeling interesting applications.
Where?
Mendel Museum's Augustinian Abbey Refectory at Mendel Square
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