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Results tagged with dependent-type
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user 4533
Use this tag for questions about dependent types, which are families of types which vary over elements of another type.
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answer
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Error `Abstracting over the term leads to a term which is ill-typed` when doing a destruct
I'm trying to make a version of nth that cannot fail because it knows that the index is inbounds. So far, so good:
Program Definition nth_safe {A} (l: list A) (n: nat) (IN: (n < length l)%nat) : A :=
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