报告1:Formalising Resilient Distributed Systems in Lean 4: Local Checkpoints, Byzantine Faults, and Three Routes to Provably Safe Recovery报告时间:7月20日09:30-10:40报告地点:理科大楼B211报告摘要:What does it mean, precisely, for a distributed system to survive a crash? A folklore answer says: resume from a snapshot tak