https://www.pistack.xyz/tags/proof-assistants/ Recent content in Proof-Assistants on Pi Stack Hugo en-us Sun, 13 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-13-proof-assistants-rocq-coq-lean4-agda-comparison/ Sun, 13 Sep 2026 00:00:00 +0000 https://www.pistack.xyz/posts/2026-09-13-proof-assistants-rocq-coq-lean4-agda-comparison/ <p>Formal verification stopped being an academic exercise. The people who verify software now ship it: <strong>CompCert&rsquo;s verified C compiler</strong> runs in avionics toolchains, <strong>seL4</strong> is a verified microkernel, and industrial teams write machine-checked proofs for authorization languages, cryptographic primitives and protocol state machines. The question in 2026 is no longer &ldquo;should we use a proof assistant?&rdquo; but &ldquo;which one?&rdquo; — and the answer changes your build system, your library ecosystem and how painful your next upgrade will be.</p>