deletions | additions       diff --git a/Rules.tex b/Rules.tex  index 02f27b9..8faffeb 100644  --- a/Rules.tex  +++ b/Rules.tex 
...
\begin{equation}  \begin{split}  \wp{x :=e}{R} &= R[x \mapsto e]\\ e] & \mbb{Assignment, R#1}\\  \wp{S1; S2}{R} &= \wp{S1}{\wp{S2}{R}}\\ \wp{S1}{\wp{S2}{R}} & \mbb{Sequential, R#2}\\  \wp{\mtt{assert }B}{R} &= B \a R\\ R & \mbb{Assertion, R#3}\\  \wp{\ie{B}{S1}{S2}}{R} &= B \to \wp{S1}{R} \a \neg B \to \wp{S2}{R}\\ \wp{S2}{R} & \mbb{Conditional, R#4}\\  \wp{\if{B}{S1}}{R} &= B \to \wp{S1}{R} \a \neg B \to R & \mbb{Conditional, R#5}\\  \end{split}  \end{equation}