# Symbols used

## Since 2011

  $\bigodot\ \Large{\qquad\mathrm{Notation} }$   $\huge{\heartsuit\ \color{Red}{\qquad\mathrm{Definition}}}$  $\huge{\clubsuit\ \color{Red}{\qquad\mathrm{Theorem}}}$  $\huge{\spadesuit\ \color{Blue}{\qquad\mathrm{Conjecture}}}$