tombstone (EN)
rzeczownik

rzeczownik “tombstone”

sg. tombstone, pl. tombstones
  1. nagrobek
    The old cemetery was filled with tombstones, each bearing the name and dates of the person buried beneath.
  2. odnosi się do symbolu "∎", który jest używany do oznaczenia końca dowodu w matematyce.
    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.