tombstone (EN)
podstatné jméno

podstatné jméno “tombstone”

sg. tombstone, pl. tombstones
  1. náhrobek
    The old cemetery was filled with tombstones, each bearing the name and dates of the person buried beneath.
  2. označuje symbol "∎", který se používá k označení konce důkazu v matematice.
    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.