
(Deep) Induction Rules for GADTs
Deep data types are those that are defined in terms of other such data t...
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GADTs, Functoriality, Parametricity: Pick Two
GADTs can be represented either as their Church encodings à la Atkey, or...
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Parametricity for Nested Types and GADTs
This paper considers parametricity and its consequent free theorems for ...
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On local presentability of T/A
We prove that if A is a locally λpresentable category and T : A→A is a ...
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A General Framework for Relational Parametricity
Reynolds' original theory of relational parametricity was intended to ca...
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Patricia Johann
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