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Saarland University Computer Science

A Step-indexed Semantic Model of Types for the Functional Object Calculus

Catalin Hritcu

M.Sc. Thesis, Programming Systems Lab, Department of Informatics, Saarland University, 2007

Step-indexed semantic models of types were proposed as an alternative to the purely syntactic proofs of type safety using subject-reduction. This thesis introduces a step-indexed model for the functional object calculus, and uses it to prove the soundness of an expressive type system with object types, subtyping, recursive and bounded quantified types.

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