lyx_mirror/lib/images/math/prime.xpm

/* XPM */
static char *a[] = {
/* columns rows colors chars-per-pixel */
"4 11 3 1",
"  c black",
". c black",
"X c None",
/* pixels */
"XX..",
"XX..",
"XX..",
"XX.X",
"X..X",
"X..X",
"X.XX",
"X.XX",
"..XX",
".XXX",
".XXX"
};