“consists of those polynomials vanishing on the y-axis, and at the point (1, 0).”

I think it should be “x-axis”, point (0,1) (to coincide with the statement and the picture).

page 123 Two lines below 3.6.12: “irreducible” after the period should be “Irreducible”.

page 126 3.6.U. I think a module is Noetherian if and only if every submodule is finitely generated, but you only ask for the proof of one direction?

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