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- [x] Chapter 9: Concurrency with Shared Variables
- [ ] 9.1 Race Conditions
- [ ] 9.2 Mutual Exclusion: sync.Mutex
- [ ] 9.3 Read/Write Mutexes: sync.RWMutex
- [x] 9.3 Read/Write Mutexes: sync.RWMutex
- [ ] 9.4 Memory Synchronization
- [ ] 9.5 Lazy Initialization: sync.Once
- [ ] 9.6 The Race Detector