A onesided ideal is quasiregular provided that it consists of quasiregular elements.

De ole folks is talk bout Plat-eye. Dey say dey takes shape ob all kind de critter

First, I got the fever – an actual fever, a sickness that almost certainly clouded my judgement for at least seventy-two hours. And it was perhaps heightened by the Dostoevskan fever that grips the soul of the punter when he is forging ahead – ‘gamblers know how a man can sit in the same place for nearly twenty-four hours, playing cards and never turning his eyes to the right or the left…’ that great Russian punter wrote.

The dominance relation directly characterizes the property of subconstituency: X dominates Y if Y is a subconstituent of X.