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Artusartos
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From my textbook:
A free R-module is "A left R-module F is called a free left R-module if F is isomorphic to a direct sum of copies of R..."
I know that another definition of an R-module a module with a basis...but I don't know how to connect that definition with this one. Also, what does "copies of R" mean?
Thanks in advance
A free R-module is "A left R-module F is called a free left R-module if F is isomorphic to a direct sum of copies of R..."
I know that another definition of an R-module a module with a basis...but I don't know how to connect that definition with this one. Also, what does "copies of R" mean?
Thanks in advance
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