Computation & Deduction
Spring 1997
Frank Pfenning

Lecture 6: Higher-Level Judgments

We describe how proofs of meta-theoretic properties (such as value soundness or type preservation for Mini-ML) can be reified as judgments relating derivations. These higher-level judgments can then be encoded in the logical framework after a small extension in the definition of the type theory. We use the example of value soundness for Mini-ML to illustrate these ideas.
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