tombstone (EN)
substantiv

substantiv “tombstone”

sg. tombstone, pl. tombstones
  1. piatră funerară
    The old cemetery was filled with tombstones, each bearing the name and dates of the person buried beneath.
  2. se referă la simbolul "∎", care este folosit pentru a indica sfârșitul unei demonstrații în matematică.
    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.