Title of article :
Regular universes and formal spaces
Author/Authors :
Palmgren، نويسنده , , Erik، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
We present an alternative solution to the problem of inductive generation of covers in formal topology by using a restricted form of type universes. These universes are at the same time constructive analogues of regular cardinals and sets of infinitary formulae. The technique of regular universes is also used to construct canonical positivity predicates for inductively generated covers.
Keywords :
Predicativity , Point-free topology , Type theory
Journal title :
Annals of Pure and Applied Logic
Journal title :
Annals of Pure and Applied Logic