TLDR Dev · ARTICLES & TUTORIALS

FORMAL METHODS AND THE FUTURE OF PROGRAMMING

blog.janestreet.com10 min read

Summary from the TLDR Dev newsletter

Formal methods are techniques that model software as mathematical entities to provide rigorous, proof-based guarantees of correctness rather than relying on standard testing. The rise of agentic coding is now shifting the cost-benefit analysis for these methods, making them an increasingly accessible tool for verifying AI-generated code, whereas before they were too expensive to consistently use.