@verb #1:"isa" this none this rxd #55
@program #1:"isa" this none this
x = this
while (valid(x))
  if (x == args[1])
    return 1
  endif
  x = parent(x)
endwhile
return 0
"Last modified by Slacker (#55) on Mon Jun 21 05:46:05 1999 MDT."
"This verb previously owned by manta (#7165), and chowned to $slacker upon dewizarding (Sat Aug 17 14:50:03 2002 MDT)."
"Last modified by Dax (#789) on Sat Aug 17 14:50:03 2002 MDT."
.