Related Clues:

• Post-proof abbr
• The proof is complete (maths)
• Relative of 'Voilà!'
• Mathematician's 'Done!'
• Mathematician's closing flourish, at times
• Lawyer's acronym
• 'Proven!'
• Logician's 'There you have it'
• Logical conclusion letters
• "That's the proof," in math
• Logician's conclusion
• Mathematician's 'I'm done'
• Abbr. in math class
• Latin proof ender (Abbr.)
• The end of mathematics?