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

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Posts: 20
Registered: 1/25/05
Closure principle
Posted: Dec 29, 2004 11:10 PM
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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.

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