Adicity vs. Arity — What's the Difference?

The number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.

Arity ( (listen)) is the number of arguments or operands taken by a function or operation in logic, mathematics, and computer science. In mathematics, arity may also be named rank, but this word can have many other meanings in mathematics.

Valence.

The number of arguments or operands taken by a function or operator.

The number of arguments or operands a function or operation takes. For a relation, the number of domains in the corresponding Cartesian product.

The maximum number of child nodes that any node in a given tree (data structure) may have.

The number of arguments (in Lojban grammar called sumti) specified in the definition of a selbri. (the selbri combined with the sumti make up a bridi).