その他

  \[
   \xy  /r1pc/:
   (0,0.25)*{\cap},(0,-0.25)*{\bigcirc}="O",
   {\xypolygon12"C"{~:{(2,0):}~*{}~>{}}},
   {\xypolygon6"D"{~:{(4,0):}~*{\times}~>{}}},
   "C1"*{\bullet};"D1"**@{-},"C3"*{\bullet};"D2"**@{-},
   "C4"*{\bullet};"D3"**@{-},"C6"*{\bullet};"D4"**@{-},
   "C8"*{\bullet};"D5"**@{-},"C11"*{\bullet};"D6"**@{-},
   "C1";"O"**@{-},"C3";"O"**@{-},"C4";"O"**@{-},"C6";"O"**@{-},
   "C8";"O"**@{-},"C11";"O"**@{-}
   \endxy
  \]

× × ∙ ∙ ∙ ∩ ∙ × ○ × ∙ ∙ × ×

6.4 その他