package coq

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package coq
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Module UnivProblemSource

Constraints for type inference

When doing conversion of universes, not only do we have =/<= constraints but also Lub constraints which correspond to unification of two levels which might not be necessary if unfolding is performed.

UWeak constraints come from irrelevant universes in cumulative polymorphism.

Sourceval is_trivial : t -> bool
Sourceval check : UGraph.t -> t -> bool
Sourcemodule Set : sig ... end
Sourcetype 'a constraint_function = 'a -> 'a -> Set.t -> Set.t
Sourceval enforce_eq_instances_univs : bool -> Univ.Instance.t constraint_function
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