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Transitivity of level inequality needed for unsolvability #3098

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andreasabel opened this issue May 30, 2018 · 0 comments
Open

Transitivity of level inequality needed for unsolvability #3098

andreasabel opened this issue May 30, 2018 · 0 comments
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constraints Constraints (postponed type checking problems, postponed unification problems, instance constraints) levels type: enhancement Issues and pull requests about possible improvements
Milestone
icebox

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@andreasabel
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andreasabel commented May 30, 2018 •
edited

The remaining MWE from #2780.

mutual
  l = _

  data D {a} (A : Set a) : Set l where
    c : A → D A

  data E (A : Set l) : Set1 where
    c : A → E A

Should discover that the level constraints are unsolvable.

See also #2246.
@andreasabel andreasabel added type: enhancement Issues and pull requests about possible improvements levels constraints Constraints (postponed type checking problems, postponed unification problems, instance constraints) labels May 30, 2018
This was referenced May 30, 2018
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@UlfNorell UlfNorell added this to the icebox milestone Jun 1, 2018
@sattlerc sattlerc mentioned this issue Jan 7, 2020
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constraints Constraints (postponed type checking problems, postponed unification problems, instance constraints) levels type: enhancement Issues and pull requests about possible improvements
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