< Potenzreihenring und Polynomring < Reihenfolge < Vergleiche
Sei ein Körper. Vergleiche die beiden Ringe
und .
![{\displaystyle {}(K[X])[[Y]]}](../../../../I/4a678a7ec8d0cb8097c714326dc30ab671a3bf3f.svg)
![{\displaystyle {}(K[[Y]])[X]}](../../../../I/af49961bd0a75679e8e3b3b21bd36dcdfb744470.svg)
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