An Introduction to Logics of Knowledge and Belief
Results in modal and dynamic epistemic logic - Paula Neeley (Lean Together 2021)
Appropriate formulation of the necessitation rule from modal logic
Understanding the modal necessitation rule
Epistemic Logic and ‘Common Knowledge’ - Marek Sergot: 499 Modal and Temporal Logic, Department of ComputingImperial College, London, Autumn 2008
It’s Common Knowledge
The Proof Theory of Common Knowledge – Michel Marti and Thomas Studer