This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
From ExtLib.Structures Require Import Monad MonadWriter MonadExc Monoid. | |
From ExtLib.Data Require Import Monads.WriterMonad List. | |
Require Import ZArith. | |
Import MonadNotation. | |
Open Scope monad. | |
Section Error. |