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Normal terms are typable with intersection types
Manage episode 286573147 series 2823367
I sketch the argument that pure lambda terms in normal form are typable using intersection types. This completes the argument started in the previous episode, that intersection types are complete for normalizing terms: normal forms are typable, and typing is preserved by beta-expansion. Hence any normalizing term is typable (since it reduces to a normal form by definition, and from this normal form we can walk typing back to the term).
161 つのエピソード
Manage episode 286573147 series 2823367
I sketch the argument that pure lambda terms in normal form are typable using intersection types. This completes the argument started in the previous episode, that intersection types are complete for normalizing terms: normal forms are typable, and typing is preserved by beta-expansion. Hence any normalizing term is typable (since it reduces to a normal form by definition, and from this normal form we can walk typing back to the term).
161 つのエピソード
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