deletions | additions       diff --git a/subsection_A_B_Since_A__.tex b/subsection_A_B_Since_A__.tex  index d1cc06b..39b04c2 100644  --- a/subsection_A_B_Since_A__.tex  +++ b/subsection_A_B_Since_A__.tex 
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\subsection{\((A, B)\)}  Since \(A = B + 1\) is the constraint, Domain \(D_A\) will be reduced to \{1, 2, 3, 4\} to be make arc \((A, B)\) arc-consistent.