We have an injective homomorphism $f $ from an affine algebra $A$ (over $k $) to a polynomial ring $k [x,y,z] $, where $k $ is a field.
Is this extension integral, ie. can we say that this $f $ induces a surjection on the spectra?
2026-03-25 18:44:11.1774464251
Is the extension integral?
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