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2014-08-21 22:00:55 +0200 | commented answer | How does one add new variables to a multivariate polynomial ring? Thank you. I think I can't upvote due to not having any reputation. |
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2014-08-21 21:29:35 +0200 | asked a question | How does one add new variables to a multivariate polynomial ring? If I try this, it fails: (But a univariate polynomial ring How do I take a polynomial ring $R$ and make a new ring $R'$ with more variables, such that $R\subset R'$? |