Clue: Mathematician's initials

Answer: QED

Length: 3

---

Similar Clues:

• Sports initials (AAU with 3 letters)
• Mathematician who proved the impossibility of solving the quintic equation (ABEL with 4 letters)
• Initials shared by the presidential runners-up of 1928 and 1956 (AES with 3 letters)
• Rap sheet initials (AKA with 3 letters)
• Service-mail initials (APO with 3 letters)
• Service mail initials (APO with 3 letters)
• "Make it snappy!" initials (ASAP with 4 letters)
• Sandwich initials (BLT with 3 letters)
• Sandwich known by its initials (BLT with 3 letters)
• Subway initials (BLT with 3 letters)