A shallow dive into formal verification
AI summary of the linked articleThe post argues that formal verification, which means writing code in Lean or low-level languages and checking its correctness with machine-verifiable mathematical proofs, could make software far more efficient and secure, and it is gaining traction in Ethereum's frontier research and in other areas of computing. It cites Yoichi Hirai's description of this as the "final form of software development." As an example, it points to a group's proof that a theorem about Signal's X3DH protocol reduces to the DDH assumption, and it notes that such proofs carry asterisks, such as the risk of proving the wrong claims or of bugs in the Lean implementation itself. The author states disagreement with pessimistic views about AI-driven bug discovery, calling that challenge transitional and expecting a more defense-favoring equilibrium. The post says Mozilla shares this view, though its post contains no mention of formal verification. |
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2 comments  The section "So what is the helpful thing that formal verification is doing?" should be more prominent. Many devs look at FV as some kind of difficult, mathematical proof for their app. However, this motto is much more approachable, I think: "With formal verification, you can specify your intent in an almost arbitrary number of different redundant ways, and the program only verifies if they are all compatible." And you don't need to start with Lean 4. Dafny, for example, is a bit easier https://dafny.org/ |