Using the Entity Registration module's built-in Views integration, I was easily able to create a view showing the events that the logged-in user has registered as attending.

Content type: Event Date field Registration field

I created a view of registrations with a relationship of registration to node.

Now, however, I would like to create a list of the content type event but only show those events for which the logged-in user has not registered.

I can add a relationship node to registration, but I don't know how to structure the filter to remove the events for which the logged-in user has registered.