That is deductive reasoning.

This one has no y at all in it.

So Bill must be tall.

But that's not what they're asking us about this.

Oh, it's great. Convincing. Mathematical deduction.

C, defining mathematical terms to correspond with physical objects.

And then we can see which of these definitions matches it.

There's no a priori reason why an H has to go between that W and A.

Deductive reasoning.

And that's when you're given a couple of examples and you generalize.

So anyway, you have some statements and you deduce other statements that must be true given those.

Well, this is more of what I had just talked about, inductive reasoning.

So if you say, OK, if these two statements are true, what can you deduce?

Although, I do think that deductive reasoning itself is probably more natural than the definition they'll give here.

It says, which of the following best describes deductive reasoning?

The problem was that an influential group at Oxford began arguing that because it worked so well in economics, this deductive method ought to be applied to the natural sciences too.

However, in 1809, David Ricardo muddied the waters by arguing that the science of economics should use a different, deductive method.

But we'll do it and hopefully it will help you understand what deductive reasoning is.

You deduced this last statement from these two other statements that you knew were true.

And I'm not a huge fan of when they ask essentially definitional questions in math class.

Performing

And these are fun, because they are kind of these deductive reasoning problems where you just use a couple of simple rules and just fill in the whole thing.

Monetary system Piano

Options

Operations

We call ourselves the Sleepy Man Banjo Boys.

In it's upper reaches it chokes.

He wrote this.

(Applause ends) (Music)

And so why don't we go and click the video.

(Music)

I can hardly bark out instructions while we're playing.

Have a listen.

If you'll pardon the expression.

The music will start, and then at a signal from me, you will sing that.

Can I do that one again?

I become alive.

It's removed some of my paralysis.

(Applause) (Music)

And then speak a little bit about how it comes about.

Riccardo Muti, please.

Let's look at the next conductor, Richard Strauss.

Carlos Kleiber, his name. Next video, please.

(Music) Again you see the beautiful body language.

He's conducting Mozart.