deletions | additions       diff --git a/3b5.tex b/3b5.tex  index 2499eaa..82e9ce7 100644  --- a/3b5.tex  +++ b/3b5.tex 
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\begin{equation}  \begin{split}  & I \a B &\to& \wp{V_1 := V; S}{V < V_1}\\  \rule{2} \iff & I \a B &\to& \to  \wp{V_1 := n}{\wp{res := res + m}{\wp{n := n - 1}{n < V_1}}}\\ \rule{1} \iff & I \a B &\to& \to  \wp{V_1 := n}{\wp{res := res + m}{n - 1 < V_1}}\\ \rule{1} \iff & I \a B &\to& \to  \wp{V_1 := n}{n - 1 < V_1}\\ \rule{1} \iff & I \a B &\to& \to  n - 1 < n\\ \iff & (res + nm = n_0m_0) \a (n \geq 0) \a (0 < n) &\to& n - 1 < n\\  \end{split}  \end{equation}