Down-set (Order Ideal)

{
  "author": null,
  "context": "Subset Y of poset P closed downward under the order; dually related to up-sets.",
  "category": "mathematics|systems",
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  "norm_label": "Down-set (Order Ideal)",
  "source_url": null,
  "graphify_id": "down_set",
  "source_file": "2022-04-01_Prabros._lattices-for-CS.pdf_8ecde3.md",
  "imported_from": "/Users/antonborzov/Documents/Research.nosync/papers/extract_typed_out/2022-04-01_Prabros._lattices-for-CS.pdf_8ecde3/graph.json",
  "extracted_type": "concept",
  "source_location": "§3.13, §3.15",
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