fact: Definition impl_pol (pol : bool) (p1 p2: Prop) := if pol then p1 -> p2 else p2 -> p1.
imports: Cdcl.PatriciaR Cdcl.KeyInt Cdcl.ReifClasses Cdcl.Lib Bool Setoid ZifyBool ZArith Uint63 Lia List Cdcl.Syntax Cdcl.Clause