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| a positive number that is equal to the sum of all positive integers that are submultiples of it, as 6, which is equal to the sum of 1, 2, and 3 |
| problem solving defined only for an isolated set of points, using only arithmetic and algebra; not involving calculus |
| antisymmetric (ˌæntɪsɪˈmɛtrɪk) | |
| —adj | |
| 1. | logic See nonsymmetric (of a relation) never holding between a pair of arguments x and y when it holds between y and x except when x = y, as "…is no younger than…" |
| 2. | maths asymmetric Compare symmetric symmetric except for a change of sign |