deletions | additions       diff --git a/3b5.tex b/3b5.tex  index 82e9ce7..970e932 100644  --- a/3b5.tex  +++ b/3b5.tex 
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\begin{equation}  \begin{split}  & I \a B &\to& \to  \wp{V_1 := V; S}{V < V_1}\\ \rule{2} \iff & I \a B \to \wp{V_1 := n}{\wp{res := res + m}{\wp{n := n - 1}{n < V_1}}}\\  \rule{1} \iff & I \a B \to \wp{V_1 := n}{\wp{res := res + m}{n - 1 < V_1}}\\  \rule{1} \iff & I \a B \to \wp{V_1 := n}{n - 1 < V_1}\\