dcernst / IBL-AbstractAlgebra

IBL course materials for an undergraduate first-semester abstract algebra course that emphasizes visualization.
http://dcernst.github.io/IBL-AbstractAlgebra/
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Add proof for Z_n being a group #139

Open dcernst opened 3 years ago

dcernst commented 3 years ago

I think I should just include the proof for this. (Well defined?)