Drexel dragonThe Math ForumDonate to the Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Topic: What is a projection of an n-tuple?
Replies: 11   Last Post: Jan 26, 2013 11:52 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 1,309
Registered: 11/29/07
Re: What is a projection of an n-tuple?
Posted: Jan 26, 2013 11:41 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On Jan 24, 12:12 pm, "Peter Percival" <peterxperci...@hotmail.com>
> Writing <...> for an ordered n-tuple; is the second projection of <x,y,z>
> y or <y>?

The second projection is a function from
X x Y x Z -> Y
taking <x,y,z> |-> y
so the second projection of your particular triple <x,y,z> is y


Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum 1994-2015. All Rights Reserved.