Math 99 (Notes)

# Quiz # 2 Review Sheet:

The quiz on Monday will consist of definitions, and will be brief. Your wording on a definition must be precise, and you will be required to give both a symbolic form and a verbal interpretation of the symbols. (Recall that an interpretation is a conceptual translation, not a symbol-by-symbol transliteration.) You may be asked to produce examples or verify that something satisfies the requirements of a definition. The ideas you should know include:

 f\colon X \to Y f^{-1}\colon Y \to X f\circ g f is one-to-one f is onto f is a bijection f=g {\rm id}_X f(A) f^{-1}(B) R is a relation on X R is reflexive R is symmetric R is transitive \equiv is an equivalence relation on X [a] X/\mathord{\sim}

 Math 99 (Winter 2005) web pages Created: 02 Mar 2005 Last modified: 06 Mar 2005 17:25:13 Comments to: dpvc@union.edu