301.6C Examples of Isomorphisms

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0:43 Every group is isomorphic to itself via the identity function. — 3:51 Some groups are isomorphic to themselves in other ways (example Z5). — 8:15 A3 is isomorphic to Z3.
  1. Matthew Salomone
  2. 301-f18
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I definitely think you're "onto" something with these great lectures! 😆

PunmasterSTP
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Superb lecture. Clear, concise and the delivery is a masterclass all of its own.

rmw
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At 6:05, you mentioned that any function from a finite set to a finite set is injective if and only if it is surjective. I believe that it is true only if the two finite sets have the same number of elements.

durian
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Isn't (123) composed with itself twice equal to (231)?

billhalprin