> Rust's type system isn't like a mathematical proof, where either the theorem is true or it's false and one mistake in the proof could invalidate the whole thi

> Rust's type system isn't like a mathematical proof, where either the theorem is true or it's false and one mistake in the proof could invalidate the whole thing Interestingly enough, in practice even mathematical proofs aren't like that either: flaws are routinely found when papers are submitted but most of the time the proof as a whole can be fixed. Wiles first submission for his proof of Fermat's last theorem in 1993 is the best known example, but it's in fact pretty frequent.