The Math Forum

Search All of the Math Forum:

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

Math Forum » Discussions » Inactive » k12.ed.math

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Closure principle
Replies: 6   Last Post: Jan 3, 2005 1:47 AM

Advanced Search

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

Posts: 20
Registered: 1/25/05
Closure principle
Posted: Dec 29, 2004 11:10 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

I dislike books that have poor indexes and absent glossaries, but the
book I'm chomping through on teaching elementary math has a convoluted
sentence with the gist that "the closure prinicple of addition and
multiplication for whole numbers is extended to include the closure
principle of division when applied to fractional computation".
I googled several combos of "closure principle" + other words, and got
mostly philosophical websites, a few religious web sites and even some
mathematical web sites that didn't define or give an example of the
"closure principle", but assumed you knew the meaning already. It isn't
in my chemistry or biology dictionary (big surprize). Help.
OT: Thrill of the day: I met a woman named Xanthippe today! I also met
someone trying to commit suicide via voodoo...i.e. hanging an effigy of
herself. They were not one and same people.

submissions: post to k12.ed.math or e-mail to
private e-mail to the k12.ed.math moderator:
newsgroup website: <a href=""></a>
newsgroup charter: <a href=""></a>

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

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.