## English

### Noun

1. (uncountable) The state of being superadditive.
2. The statement that a function is superadditive.

#### Antonyms

• what is superadditivity in psychology

## English

### Etymology

1. (mathematics, of a function) Such that the image of a sum is at least the sum of the images of the summands.
Knot genus is superadditive under band sum because ${\displaystyle g(K_{1}\sharp _{b}K_{2})\geq g(K_{1})+g(K_{2})}$.