Enter a clue or pattern or both:
The Clue
Proof's end (3 letter answer)
The Answer
QED
Tags
Notes
The answer QED is seen frequently, appearing about once every 160 puzzles.
Related Clues
Argument closer
End of an argument
End of a demonstration?
End of a proof
Ending letters
Euclidean abbr.
Geometer's postscript
Geometer's P.S.
Geometric postscript
Geometry abbr.
Geometry letters
Latin abbr.
Letters from a mathematician
Logical abbr.
Logical conclusion
Logical ending
Logician's abbr.
Math abbr.
Math finale
Math initials
Math. initials
Math proof
Proof closer
Proof ender
Proof finale
Proof letters
Proved, in math.
"And that proves it"
End of a math proof
Geometer's sign-off
Geometric sign-off
Letters after a proof
Letters at the end of a proof
Math journal letters
Mathematical proof letters
Mathematician's "ta-da!"
Mathematician's "ta-da"
Proof-ending abbr.
Proof-ending letters
Letters seen during proofreading?
Letters seen by a proof reader?
Logician's triumphant sign-off
Which was to be proved
Definition
QED as a noun:
1. (quantum electrodynamics, QED) = a relativistic quantum theory of the electromagnetic interactions of photons and electrons and muons