2.1
wnds:Windows 20005.0
FchF
C1083107239261D1083107313709
newFormat
{p=proof{p{s(i{r&1;})r{u=uProof;s=proof;}o{c=0;s="";l="";d@}u{t()}f(t{s(i{r=fol{t="@x(Cube(x) $ @y(Larger(y, b) $ LeftOf(x, y)))";b&8;g=@;}})r{u=uPremise;s=step;}o&6;u{t&8;}},t{s(i{r=fol{t="@x(Medium(x) $ @y(LeftOf(x, y) $ SameCol(c, y)))";b&8;g=@;}})r&14;o&6;u{t&8;}},t{s(i{r=fol{t="";b&8;g=@;}})r{u="uRule?";s=step;}o&6;u{t&8;}},t{s(i{r=fol{t="/x(Larger(x, b) & SameCol(x, c)) $ /x(Cube(x) & Medium(x))";b&8;g=@;}})r{u="uLog Con";s=fol;}o=fol_con{c=-1;s="";l="";d@f=48;}u{t(p{si&12;ss=0;},p{si&18;ss=1;})}},t{s(i{r=fol{t="";b&8;g=@;}})r&25;o&6;u{t&8;}},t{s(i{r=fol{t="****       This argument isn't valid        ****";b&8;g=@;}})r&25;o&6;u{t&8;}})}g{g&8;}a=true;}}c=58764;