A Willmar Middle School student looks up at the falling snow after leaving the school at the end of the day on Wednesday, Feb. 14, 2024.
(WISH) – Hoosiers across central Indiana saw the first measurable snow fall of the year on Tuesday. Viewers from all across the state sent in photos.
We determine the Borel class of the image of a Polish space under a Borel measurable function of class η which maps open sets in the Polish space to Borel sets of additive class ξ in the range, under ...
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