How does cooperation helps to progress?

When you cooperate with someone, that means you're both probably willing to compromise.

If you are attempting to work with someone, you may have one goal while they have another. Even if the goals are similar, the difference may be enough to impede the progress of your project. That may be likely to lead to a stalemate or worse; it could cause people who were supposed to work together to actually work against each other.

If both parties are willing to cooperate, that means they will actively attempt to compromise and work towards a mutually beneficial outcome. This helps lead to progress for most any scenario that involves two or more people working together.