Add some bitvector rules

This moves #31 forward!

spec/rule_list.tex

@@ -229,6 +229,16 @@ simplifications.}
 \ruleref{qnt_simplify} & Simplification of constant quantified formulas. \\
 \end{xltabular}
 
+\begin{xltabular}{\linewidth}{l X}
+\caption{Bitvector rules.}
+\label{rule-tab:simplification}\\
+  Rule & Description \\
+  \hline
+\ruleref{bitblast_extract} & Bitblasting of $\lsymb{extract}$. \\
+\ruleref{bitblast_ult} & Bitblasting of $\lsymb{ult}$. \\
+\ruleref{bitblast_add} & Bitblasting of $\lsymb{add}$. \\
+\end{xltabular}
+
 \subsection{Rule List}
 \label{sec:alethe:rules-list}