Answer: qed

AnswerCrossword Clue
QEDEnd-of-proof letters
QEDLogician's abbr.
QEDMath text abbr.
QEDArgument-ending letters
QEDLetters after a proof
QEDLetters at the end of a proof
QEDLogical abbr.
QEDLogical letters
QEDMath proof letters
QEDProof initials
QEDConclusion letters
QEDEnd of many an argument
QEDMath proof abbr.
QEDProof-ending abbreviation
QED"Proved!" letters
QEDTheorem ender
QEDConcluding letters
QEDGeometric proof conclusion (abbr.)
QEDGeometry proof ender
QEDMathematician's "voil !"
QEDAbbr. in math class
QEDLogician's "Proved!"
QEDProof-ending letters
QEDGeometric sign-off
QEDGeometry-proof letters
QEDProof letters
QEDArgument closer
QEDProof letters (abbr.)
QEDLetters of proof
QEDLat. abbr. in math proofs
QEDProof abbr.
QEDProof ending
QEDLogician's "ta-da!"
QEDLogician's "There!"
QEDMath-proof letters
QEDProof concluder
QEDProof finisher
QEDMathematician's closing flourish, at times
QEDEnd of a proof
QEDProof finale