Luo, Z. and Adams, R. (2008) Structural subtyping for inductive types with functorial equality rules. Mathematical Structures in Computer Science, 18 (5).
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In this paper we study subtyping for inductive types in dependent type theories in the farmework of coercive subtyping. General structural subtyping rules for parameterised inductive types are formulated based on the notion of inductive schemata. Certain extensional equality rules play an important role in proving some of the crucial properties of the type system with these subtyping rules. In particular, it is shown that the structural subtyping rules are coherent and than transitivity is admissible in the presence of the functorial rules of computational equality.
This is a Approved version This version's date is: 2008 This item is not peer reviewed
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