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\hspace{-0.09cm}\scalebox{0.85}{
\begin{dplltabular}{4}
\dpllStep{1|2|3|4}
\dpllDecL{0|1|1|1}
\dpllAssi{ - |$\lnot a$|$\lnot a, d$|$\lnot a, d, b$}
\dpllClause{1}{$a, b, c$}{$a, b, c$|$b, c$|$b, c$|\done}
\dpllClause{2}{$\lnot b, \lnot c, d$}{$\lnot b, \lnot c, d$|$\lnot b, \lnot c, d$|\done|\done}
\dpllClause{3}{$c, d, \lnot e$}{$c, d, \lnot e$|$c, d, \lnot e$|\done|\done}
\dpllClause{4}{$\lnot a, d, \lnot e$}{$\lnot a, d, \lnot e$|\done|\done|\done}
\dpllClause{5}{$c, b, d$}{$c, b, d$|$c, b, d$|\done|\done}
\dpllClause{6}{$\lnot a, \lnot d, e$}{$\lnot a, \lnot d, e$|\done|\done|\done}
\dpllBCP{ - | - | - | - }
\dpllPL{ - |$d$|$b$| - }
\dpllDeci{$\lnot a$| - | - |SAT}
\end{dplltabular}
}