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<url><loc>https://stringdiagram.com/2026/07/11/distributing-over-the-powerset/</loc><news:news><news:publication><news:name>Dan Marsden</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-07-11T14:02:46+00:00</news:publication_date><news:title>Distributing over the powerset</news:title><news:keywords>mathematics, math, category-theory</news:keywords></news:news></url><url><loc>https://stringdiagram.com/2026/07/11/lifting-the-powerset-monad/</loc><news:news><news:publication><news:name>Dan Marsden</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-07-11T13:49:05+00:00</news:publication_date><news:title>Lifting the Powerset Monad</news:title><news:keywords>mathematics, math, category-theory</news:keywords></news:news></url></urlset>