Do slide 55 and 20 represent basically the same? It looks a bit confusing I must say. Why did you show us slide 20 if later on we use other names and definitions?

Ened,

As i say in the screencast, the initial slides introduce themes. So all of them repeat. If your criteria is that I don’t repeat some information, I won’t meet your criteria.

David

Ok. It’s not a matter of criteria, the thing is that they look alike, but are in fact not the same. I guess that in this case we only need to learn the ones on slide 55.