Related Clues:

• ''Proved!'' letters
• Mathematician's 'ta-da!'
• Proof conclusion
• Math notation
• Abbr. after a proof
• Proof-ending letters
• Proof ending
• Logician's 'and, therefore'
• Mathematician's initials
• Logician's sign-off
• Proof initials
• Last letters of a math proof
• 'And there you have it!' to a mathematician
• Mathematician's 'See, like I said'
• Logical letters