Math Is Fun Forum

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Postulates

How can playfair's postulate be proved from parallel postulate and vice versa?

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There are 10 kinds of people in the world,people who understand binary and people who don't.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,619

Re: Postulates

hi {7/3}

I found this on Wiki.

http://en.wikipedia.org/wiki/Playfair's_axiom

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Re: Postulates

Sorry,but that page seems to be vacant.

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There are 10 kinds of people in the world,people who understand binary and people who don't.

barbie19022002

Member

Registered: 2013-05-24

Posts: 1,314

Re: Postulates

Ya, {7/3} is saying right the page is vacant...

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Jake is Alice's father, Jake is the ________ of Alice's father?
Why is T called island letter?
think, think, think and don't get up with a solution...

phrontister

Real Member

From: The Land of Tomorrow

Registered: 2009-07-12

Posts: 4,876

Re: Postulates

Maybe this is it? Looks like there was some problem with the handling of the apostrophe in "Playfair's" in the url.

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"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Re: Postulates

I didn't really understand the proofs,and by the way how do you post links?

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There are 10 kinds of people in the world,people who understand binary and people who don't.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Postulates

Between the url tags.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Re: Postulates

Hi bobbym,you're gonna have to give me more than that,all i know about internet is how to browse.

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There are 10 kinds of people in the world,people who understand binary and people who don't.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,619

Re: Postulates

Try this:

http://en.wikipedia.org/wiki/Playfair%27s_axiom

The page is, I think, a recent addition.  Looks like they changed the page name slightly.

Bob

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Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Postulates

Hi {7/3};

Hi bobbym,you're gonna have to give me more than that,all i know about internet is how to browse.

In the address bar of your browser you will see an url of the page. Copy that between the two url tags. For instance:

http://www.mathisfunforum.com/

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Re: Postulates

Thanks bob.
Let me give a trial,http://www.mathsisfun.com/

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There are 10 kinds of people in the world,people who understand binary and people who don't.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Postulates

Looks like you got it!

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

{7/3}

Member

Registered: 2013-02-11

Posts: 210

Re: Postulates

Thanks bobbym.

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There are 10 kinds of people in the world,people who understand binary and people who don't.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Postulates

Hi {7/3};

You are welcome.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.