# Nit common library of core classes and methods

Core classes and methods used by default by Nit programs and libraries.

## Core Basic Types and Operations

[[doc: kernel]]

### Object

[[doc: Object]]

#### Equality

[[doc: core::Object::==]]
[[doc: core::Object::!=]]
[[doc: core::Object::hash]]
[[doc: core::Object::is_same_instance]]
[[doc: core::Object::object_id]]

#### Debuging

[[doc: core::Object::output]]
[[doc: core::Object::output_class_name]]
[[doc: core::Object::is_same_type]]

### Sys

[[doc: Sys]]

#### Program Execution

[[doc: core::Sys::main]]
[[doc: core::Sys::run]]

### Other

[[defs: kernel]]

## Core Collections

[[doc: core::collection]]

## String and Text manipulation

[[doc: core::text]]