In Mathematics
- Ideal (ring theory), special subsets of a ring considered in abstract algebra
- Ideal, special subsets of a semigroup
- Ideal (order theory), special kind of lower sets of an order
- Ideal (set theory), a collection of sets regarded as "small" or "negligible"
- Ideal (Lie algebra), a particular subset in Lie algebra
Read more about this topic: Ideal
Famous quotes containing the word mathematics:
“Why does man freeze to death trying to reach the North Pole? Why does man drive himself to suffer the steam and heat of the Amazon? Why does he stagger his mind with the mathematics of the sky? Once the question mark has arisen in the human brain the answer must be found, if it takes a hundred years. A thousand years.”
—Walter Reisch (1903–1963)
“... though mathematics may teach a man how to build a bridge, it is what the Scotch Universities call the humanities, that teach him to be civil and sweet-tempered.”
—Amelia E. Barr (1831–1919)