# Algebra

## Category theory

### Basic theory

- Monoidal categories and multiple monoidal products
- Bicategories and higher categories
- Structured categories: enriched categories, internal categories, and fibered categories
- Relaxations of cartesian categories

- Monoidal categories and multiple monoidal products
- Bicategories and higher categories
- Structured categories: enriched categories, internal categories, and fibered categories
- Relaxations of cartesian categories