Okay, let's start.

Welcome to the second lecture of AI.

I want to state that at 12.15, there are still three spaces as predicted yesterday.

I'm happy that so many of you are still here.

I've seen that on Stuttgart, where you should register so you can actually submit homeworks,

we've passed the 120 mark.

Much nearer to 130 now, which probably means that we'll have something like 100 people

regularly attending either via video or in person.

Yes, why is this?

No, good.

As I said yesterday, I will always use the first 10 or 15 minutes to go over the slides

from yesterday again, say all the things that I've forgotten yesterday or the lecture before

and answer any questions you may have.

So use this to actually put your questions at the right place so that you can actually

remember what was being said.

With questions, you've been quite good yesterday in asking questions.

Keep it up.

Just been told we have a new toy.

I told you yesterday that we had a problem in actually getting the questions onto tape.

Now we'll try this.

Whenever you have a question, then I will actually throw this at you or if that doesn't

work or you have coffee in front of you somewhere near you, I hope, or just pass it through

and then you should please ask your questions like this.

If this works well, we'll keep it up.

I assume that you will bring the new toy everywhere and if it doesn't work well, we'll revert

to the old system.

That okay with you?

We will not actually put the camera to you.

Some people don't like being filmed and I don't want to get signatures from all of you

that you could be filmed in a question or something like that.

So the camera will still be on me.

Is that okay with everybody?

Excellent.

Now as I said, it's perfectly fine to ask your questions in German, then I'll just translate.

Are there any questions?

That is a microphone, a very soft one, so that I can throw it.

Apparently you have to speak into this.

This is actually the microphone.

So, okay, I still have to learn this.

Any more questions?

I hope I'm not scaring you.

Okay good.

Then we'll start.

We first talked about admin.

There are some soft prerequisites, I'm assuming that you've kind of done your first semesters

in computer science, which means algorithms and data structures, a little bit of logic.

We will teach you all you need to know about logic, but if you've heard it before, it goes

down easier.

Warning, I'll do some things differently than in GLEI.

In particular, I don't like the Fitch calculus.