\magnification 1200 \parskip 7pt \parindent 0pt \hoffset -0.3truein \hsize 7truein \vsize 9.7truein \voffset -0.3truein \def\R{{\bf R}} \def\C{{\bf C}} \def\x{{\bf x}} \def\y{{\bf y}} \def\e{{\bf e}} \def\i{{\bf i}} \def\j{{\bf j}} \def\k{{\bf k}} \def\ep{\epsilon} \def\f{\vskip 10pt} \def\u{\vskip -6pt} Note quizzes are cumulative Quiz 3 - ? \underbar{Section 3} Define equivalence relation. A relation $<$ on a set A is called a simple order (or linear order of order relation) if a is an immediate predecessor of b (or b is an immediate successor of a) if The dictionary order relation on $A \times B$ is $X$ has the least upper bound property if $X$ has the greatest lower bound property if \underbar{Section 10} An ordered set $(A, <)$ is well-ordered if Give an example of a countable well-ordered set. \underbar{Chapter 2} Define the following: Basis Topology generated by a basis ${\cal B}$ Subbasis Topology generated by subbasis ${\cal S}$ Standard topology on $\R$ Lower limit topology on $\R$ Discrete topology Indiscrete topology co-finite topology (= finite complement topology) co-countable topology (= countable complement topology) Order topology \vskip 10pt \hrule Quiz 4? - ? \underbar{Section 3} Define partition. \u How does an equivalence relation determine a partition. \u How does a partition determine an equivalence relation. \end Product topology Subspace topology