[Agda] Why does Agda think this is not strictly positive?

Roman effectfully at gmail.com
Thu Jul 21 06:12:58 CEST 2016


Andreas, thanks for the answer, I now understand the problem.

> the index A appears as variable, so it could be treated like a parameter.

Since Agda already knows that when performing universe checking, maybe
it's not hard to implement this for positivity checking too? And
enable by something like {-# OPTIONS --indices-variance #-}.


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