β›₯π’žπ’Ύπ“ƒπ“†π“Šβ„―π’»β„΄π’Ύπ“ 𝓀𝓃ℴ𝓉⛦ πŸͺ’

#cinquefoil knot #knot theory #double overhand knot #prime knot #torus knot #topology