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Joined 2026-09-21 Message
Incoming links: Communicating states
Past exam of the mathematics course of the University of Cambridge 2007 ib Paper 4 9C i Solution Created 2026-09-24 Updated 2026-09-24
Past exam of the mathematics course of the University of Cambridge 2019 ib Paper 3 9H a Solution Created 2026-09-24 Updated 2026-09-29
States communicate when each is accessible from the other: there exist nonnegative integers such that and . A communicating class is an equivalence class for this relation.