Vocabulary Entry

qed

|verb • noun

verb

To indicate that something has been demonstrated or proved, often used at the end of a proof or argument.

Example Sentences

"The mathematician wrote 'qed' at the end of his proof to signal its completion."

"After outlining her theory, she confidently concluded with 'qed'."

"In formal logic, proving a statement often results in the use of 'qed' to finalize the argument."

noun

Example Sentences

"The professor explained the meaning of 'qed' as he reviewed the theorem."

"In academic writing, you might find 'qed' used in proofs to indicate conclusion."

"Many students struggle to understand when to properly use 'qed' in their assignments."