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tombstone (EN)
substantiv

substantiv “tombstone”

entall tombstone, flertall tombstones
  1. gravstein
    The old cemetery was filled with tombstones, each bearing the name and dates of the person buried beneath.
  2. referer til symbolet "∎", som brukes for å indikere slutten på et bevis i matematikk.
    After carefully laying out each step of the theorem, the mathematician concluded the proof with a tombstone, signaling to readers that no further explanation was needed.