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Classical lambda calculus in modern dress

Published online by Cambridge University Press:  13 July 2015

J.M.E. HYLAND*
Affiliation:
Department of Pure Mathematics and Mathematical Statistics, University of Cambridge, Cambridge, UK Email: m.hyland@dpmms.cam.ac.uk
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Abstract

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Recent developments in the categorical foundations of universal algebra have given an impetus to an understanding of the lambda calculus coming from categorical logic: an interpretation is a semi-closed algebraic theory. Scott's representation theorem is then completely natural and leads to a precise Fundamental Theorem showing the essential equivalence between the categorical and more familiar notions.