*in which we use actions to find sizes of groups, subgroups and stabilisers, and prove Cauchy’s Theorem.
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*in which we use actions to find sizes of groups, subgroups and stabilisers, and prove Cauchy’s Theorem.
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*in which we meet several standard actions and prove Cayley’s Theorem.
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*in which we meet orbits and stabilisers and prove the Orbit-Stabiliser Theorem.
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*in which we meet orbits and stabilisers and prove the Orbit-Stabiliser Theorem.
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