15-851 Computation and Deduction
Lecture 20: Subtyping Constraints
In this lecture we combine the idea of constraint-based type inference
with atomic subtyping. The language of constraints is not based on
subtyping rather than equality between types, and algorithms for
deciding satisfiability more complex.
Since our language extended pure atomic subtyping via several case
rules, our constraint language must also be able to handle disjunction,
which further complicates algorithms for type inference.
This lecture give by Brigitte Pientka
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Frank Pfenning
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