> For the complete documentation index, see [llms.txt](https://docs.aeternity.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.aeternity.com/developer-documentation/aesophia/docs/index.md).

# Introduction

Sophia is a functional language designed for smart contract development. It is strongly typed and has\
restricted mutable state.

Sophia is customized for smart contracts, which can be published\
to a blockchain. Thus some features of conventional\
languages, such as floating point arithmetic, are not present in Sophia, and\
some [æternity blockchain](https://aeternity.com) specific primitives, constructions and types have been added.

!!! Note\
\- For rapid prototyping of smart contracts check out [AEstudio](https://studio.aepps.com/)!\
\- For playing around and diving deeper into the language itself check out the [REPL](https://repl.aeternity.io/)!


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