> For the complete documentation index, see [llms.txt](https://pred-1.gitbook.io/pred-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://pred-1.gitbook.io/pred-docs/getting-started/core-concepts.md).

# Core Concepts

- [Trading Probabilities, Not Betting Odds](https://pred-1.gitbook.io/pred-docs/getting-started/core-concepts/trading-probabilities-not-betting-odds.md)
- [On-Chain by Design](https://pred-1.gitbook.io/pred-docs/getting-started/core-concepts/on-chain-by-design.md)