fact: Definition is_arrow (f:LForm) : bool := match f with | LIMPL f1 f2 => true | _ => false end.
imports: Cdcl.PatriciaR Cdcl.KeyInt Cdcl.ReifClasses Cdcl.Lib Bool Setoid ZifyBool ZArith Uint63 Lia List Cdcl.Syntax Cdcl.Clause