Horrible answers to "What is a type?"
Horrible answers to "What is a type?"
2025-11-17
Table of contents
- A set.
- Absolutely not a set.
- An element of a category.
- A proposition.
- A chosen fixed point of a generating function.
- The initial algebra/final coalgebra of a generating endofunctor over a reasonable base category (say,
Set).
- A metaphorical representation of bytes.
- A membership function
UNIV -> bool.
- Propaganda made up by Big Typechecker to make us complacent.
- The archetype of person that you tend to feel attracted to romantically.