[concepts.callable.general]

# 18 Concepts library [[concepts]](./#concepts)

## 18.7 Callable concepts [[concepts.callable]](concepts.callable#general)

### 18.7.1 General [concepts.callable.general]

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/concepts.tex#L1209)

The concepts in [[concepts.callable]](concepts.callable "18.7 Callable concepts") describe the requirements on function
objects ([[function.objects]](function.objects "22.10 Function objects")) and their arguments[.](#1.sentence-1)