mjo-topology.tex

   1 %
   2 % Standard topological operations.
   3 %
   4 \ifx\havemjotopology\undefined
   5 \def\havemjotopology{1}
   6
   7
   8 \ifx\operatorname\undefined
   9   \usepackage{amsopn}
  10 \fi
  11
  12 \input{mjo-common} % for \of, at least
  13
  14 % The ``interior of'' operator.
  15 \newcommand*{\interior}[1]{ \operatorname{int}\of{{#1}} }
  16
  17 % The ``closure of'' operator.
  18 \newcommand*{\closure}[1]{ \operatorname{cl}\of{{#1}} }
  19
  20 % And the ``boundary of'' operator.
  21 \newcommand*{\boundary}[1]{ \operatorname{bdy}\of{{#1}} }
  22
  23
  24 \fi