Simple Models for Recursive Schemes

Abstract Higher-order recursive schemes are abstract forms of programs where the meaning of built-in constructs is not specified. The semantics of a scheme is an infinite tree labeled with built-in constructs. The research on recursive schemes spans over more than forty years. Still, central problems like the equality problem, and more recently, the model checking problem for schemes remain very intriguing. Even though recursive schemes were originally though of as a syntactic simplification of a fragment of the lambda calculus, we propose to go back to lambda calculus to study schemes. In particular, for the model checking problem we propose to use standard finitary models for the simply-typed lambda calculus.

Authors

• Igor Walukiewicz

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