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Nice Answer

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6,32822 silver badges44 bronze badges

earned this badge 6 times.

An example of a commutative ring in which every primary ideal is prime

Awarded Jan 17, 2020 at 12:15

A counterexample to the going down theorem

Awarded Aug 18, 2019 at 7:40

Embedding of free $R$-algebras

Awarded Nov 19, 2015 at 4:27

Intersection maximal ideals of a polynomial ring

Awarded May 27, 2013 at 21:18

Must $k$-subalgebra of $k[x]$ be finitely generated?

Awarded Apr 15, 2013 at 7:04

Slick proof the determinant is an irreducible polynomial

Awarded May 20, 2012 at 6:35

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