Proof's ending

• Logician's triumphant sign-off
• Gertrude Stein's first novel, published posthumously as "Things As They Are"
• Proof ender
• Argument's conclusion
• ''Proved!'' letters
• Proof finish
• Mathematician's letters
• Proof-ending abbr

Wikipedia Word definitions in Wikipedia
QED were an Australian New Wave trio, whose lead singer, Jenny Morris , went on to achieve commercial success as a solo artist. The band had a top twenty hit single, "Everywhere I Go", on the Australian Kent Music Report in 1983.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
QED \QED.\ (k[=u]"[=e]*d[=e]"), n. Quantum electrodynamics. [abbrev.]