fact: Definition is_pset_stack (u: list (Annot.t literal)) (d: LitSet.t) := exists a, In a u /\ d = Annot.deps a.
imports: Cdcl.PatriciaR Cdcl.KeyInt Cdcl.ReifClasses Cdcl.Lib Bool Setoid ZifyBool ZArith Uint63 Lia List Cdcl.Syntax Cdcl.Clause