Why Buran Had Four Computers, Not Three — and What a Lean Proof Adds

zatona.dev · 2026-09-27 · by Long Nguyen ·generic
Buran's redundant flight computer ran four identical channels, rated for two failures. A Rust model of its voter, proved in Lean, and what that misses.

Why Buran Had Four Computers, Not Three — and What a Lean Proof Adds

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