adjective. The Roman numerals signifying nine; denoting a quantity consisting of one more than eight and one less than ten.

adjective. denoting a quantity consisting of one more than eight and one less than ten

noun. the cardinal number that is the sum of eight and one

"Page 53 connection cannot be assumed without separating x¹ a from x¹ b, with which, however, it obviously forms a group, and entirely disregarding the relations which the groups x, ix: ix¹, x¹ bear to one another and to the dolphin 0¹."

cardinal  

digit  figure  

IV  Sec.  ________________________________________________________________  acknowledgments  appendix  

ox  

9  nine