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The acronym "QED" is a valid and commonly used abbreviation in written English.
It is an abbreviation of the Latin phrase "quod erat demonstrandum" and is used to indicate the end of a logical argument or proof. For example: "Amelia's solution to the math problem was correct, QED."
Dictionary
QED
noun
Quantum electrodynamics.
synonyms
Exact(53)
Iceland is not in the EU, they say, therefore leaving the EU would allow us to run cod fisheries much better, QED.
In QED there is only one type of electric charge, which can be positive or negative in effect, this corresponds to charge and anticharge.
QED describes a force that can extend across infinite reaches of space, although the force becomes weaker as the distance between two charges increases (obeying an inverse square law).
This gauge invariance is preserved in the modern theory of electromagnetism called quantum electrodynamics, or QED.
QED, the quantum theory of the interaction between light and matter, has produced some of the most numerically accurate predictions in physics of any physical theory over the past 50 years.
The rules of their behaviour and their interaction with electrons and other charged particles, as well as the interactions of charged particles with one another, constitute QED.
Similar(7)
The work W done in moving the positive charge through a distance d is W = F′d = −qEd.
\(\qed\) Theorem (Equality for Equivalents).
\(\qed\) Theorem (The Conjunction Rule).
\(\qed\) Theorem (Gärdenfors' Triviality Theorem).
\(\qed\) Theorem (Conjunction Costs Probability).
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com