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PRL Project

CZF, Type Theory, and Nuprl-Light

by Evan Moran
1996-1997

CZF is a constructive analogue of ZF set theory, and Nuprl-Light is a framework for specifying, implementing, and relating logical systems. I will present a translation of CZF into constructive type theory and then sketch a couple of approaches to implementing this translation as a signature-module relation in Nuprl-Light.

CZF and the translation are due to Peter Aczel [c. 1977]; Nuprl-Light is recent work of Jason Hickey