Isabelle/HOL
Isabelle/HOL is a proof assistant and interactive theorem prover based on higher-order logic (HOL), used for formal verification of mathematical theorems and software systems. It provides a framework for constructing and checking proofs, ensuring correctness through rigorous logical reasoning. It is widely applied in academia and industry for verifying hardware, software, and security protocols.
Developers should learn Isabelle/HOL when working on safety-critical systems, such as aerospace, automotive, or financial software, where formal verification is essential to prevent errors and ensure reliability. It is also valuable for researchers in computer science and mathematics who need to prove complex theorems or verify algorithms, as it automates proof checking and reduces human error.