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.

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.

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

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.

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

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

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

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.

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

That's the word.

Welcome to 10,000 feet.

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

Burning lots of midnight oil.

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.

(Applause)

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.

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

You look at art.

Another role that I like to take on is that of the performance artist.

To me, this is a truly unique project.

Performing

CA

Harold Gould, and special guest star, Celeste Holm.

This may not immediately seem like a useful optimization,

It was the combination.

We can just do the same thing for the second elements of A and B, multiply together.

For example, fascinating talks contain a statistically high amount of exactly this blue color, (Laughter) much more than the average TEDTalk.

5 x 8, 1 2, 2 6 is 64.

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)