gap&gt; ps := PG(6,13);
ProjectiveSpace(6, 13)
gap&gt; Points(ps);
&lt;points of ProjectiveSpace(6, 13)&gt;
gap&gt; Lines(ps);
&lt;lines of ProjectiveSpace(6, 13)&gt;
gap&gt; Planes(ps);
&lt;planes of ProjectiveSpace(6, 13)&gt;
gap&gt; Solids(ps);
&lt;solids of ProjectiveSpace(6, 13)&gt;
gap&gt; Hyperplanes(ps);
&lt;proj. 5-subspaces of ProjectiveSpace(6, 13)&gt;
gap&gt; ps := PG(2,2);
ProjectiveSpace(2, 2)
gap&gt; Hyperplanes(ps);
&lt;lines of ProjectiveSpace(2, 2)&gt;
