Abstract. A fundamental and unanalysed logical concept is substitution. This seemingly innocuous operation -- substituting a variable for a term or valuating a variable to an eleme...
This paper describes recent results from the robotics community that develop a theory, similar in spirit to the theory of computation, for analyzing sensor-based agent systems. Th...
We show that the first-order theory of structural subtyping of non-recursive types is decidable. Let be a language consisting of function symbols (representing type constructors)...
In this paper we define intensional models for the classical theory of types, thus arriving at an intensional type logic ITL. Intensional models generalize Henkin's general m...
We investigate the computability of countable subshifts in one dimension, and their members. Subshifts of Cantor-Bendixson rank one contain only eventually periodic elements. Any ...
Douglas A. Cenzer, S. Ali Dashti, Ferit Toska, Seb...