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