Question 1117611
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One important thing to remember:  They don't just use a bunch of random letters to name these properties; the words mean something about the way the property works.  Symmetric has something to do with being the same on both sides.  Addition has something to do with adding the same thing to both sides. Transitive has the word "transit" in it -- something moved across.  Substitution has something to do with substituting -- like in a Basketball game, the coach substitutes one player for another -- except that in mathematics if you are going to substitute one thing for another the two things must be either equal or congruent.  So the first statement looks exactly like the last statement except one thing has been substituted for another and the two things, according to the middle statement, are equal. 


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  

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