11. In category theory, the cardinal numbers form a skeleton of the category of sets. 12. The collection of dual numbers forms a particular two-unital associative algebra over the real numbers. 13. Consequently, the operation ?" acting on the nonnegative real numbers forms a commutative monoid. 14. Half, 3250 are females, and 10 % of that number forms the Asian female population. 15. The nonzero rational numbers form a group under multiplication. 16. The surcomplex numbers form an algebraically closed transcendental elements. 17. Thousands of more or less interesting prime number forms have been listed and often named. 18. The natural numbers form a subset of the integers. 19. This module converts Hanyu Pinyin input from the " lazy " numbers form ( eg. 20. :I know quite a bit about prime number forms .
