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:
“In mathematics he was greater
Than Tycho Brahe, or Erra Pater:
For he, by geometric scale,
Could take the size of pots of ale;
Resolve, by sines and tangents straight,
If bread and butter wanted weight;
And wisely tell what hour o’ th’ day
The clock doth strike, by algebra.”
—Samuel Butler (1612–1680)
“It is a monstrous thing to force a child to learn Latin or Greek or mathematics on the ground that they are an indispensable gymnastic for the mental powers. It would be monstrous even if it were true.”
—George Bernard Shaw (1856–1950)