MATH135 Lecture Notes - Transitive Relation, Thx
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25 Sep 2013
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Optional reading i: equalities and inequalities of real numbers. 4 3 or as(cid:80) (cid:16) 1 (cid:17)j. In mathematics, the same object may often be expressed in di erent forms. However, no matter how we write it, the number 1 is just what it is. That is why, we use a relation known as equality (symbol: = ) to convey the idea that regardless of the expressions, we may be talking about the same object. Given two expressions l and r, we write l = r and say l is equal to r (or that l and r are equal) to mean that both l and r represent the same number . When we write l = r, we say that l is the left hand side (l. h. s) and r is the right hand side (r. h. s) of the equation. j=1. = r and l = r x x. x.
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