Group Action On a Set Part1

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This video gives definition of Group Action of G on a set X. It also give an example to make some sense of this definition. The video refers to John Fraledigh's text Section 16
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Admirably clear and efficient explanation, thanks !

raylittlerock
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thanks. Finally i got the "action" thing. !!!

coobit
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Suggestion: Why not simply say that a Group Action on a set is a homomorphism  from a group G to the set of Aut(S) the set of all one to one permutations of S. It's so much easier than all the formal defining that you have done and is non intutive?

joetursi