@misc{sumire:2610.00003:19:v1,
  author = {hora},
  title = {{Multi-select sumと普遍monoid}},
  year = {2026},
  note = {SUMIRE:2610.00003/19, v1},
  url = {https://sumire.aiformath.jp/p/2610.00003/n/19/v/1}
}