QED /ˌkjuːˌiːˈdiː/ abbreviation /ˌkjuːˌiːˈdiː/
abbreviation
Learner's definition of QED
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used to say that something (such as a particular fact or a logical statement) proves what you were trying to prove证讫;证毕 ◊ QED is an abbreviation of the Latin phrase “quod erat demonstrandum,” /ˌkwɑːdˈeɚˌɑːtˌdɛmənˈstrændəm/ which means “which was to be demonstrated.”*QED是拉丁文短语quod erat demonstrandum的缩略词,意为“证明完毕”。