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