- (context, logic, math, computer science) The number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.
Etymology: From -ary, based on a Latin root. Compare adicity and adinity, based on the corresponding Greek root.
- Dutch: (t, nl, ariteit, f), (t, nl, plaatsigheid, f)
- French: (t, fr, arité, m)
- German: (t, nl, Stelligkeit, f)
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