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Q.E.D.

Q.E.D. (also written as QED) is an initialism of the Latin phrase quod erat demonstrandum, meaning "that which was to be demonstrated". Literally, it states "what was to be shown". Traditionally, the abbreviation is placed at the end of mathematical proofs and philosophical arguments in print publications, to indicate that the proof or the argument is…

Applications, Etymology and early use & Modern philosophy

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Etymology and early use

GreekGerundiveEuclidArchimedesGiorgio Valla
9 related topics

Modern philosophy

EthicsBaruch SpinozaMagnum opusGeometricalAxioms
9 related topics

Typographical forms used symbolically

TheoremsLemmasPaul HalmosTypographyTombstone
8 related topics

Difference from Q.E.F.

Equilateral triangle
1 related topics

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Etymology and early use

Modern philosophy

Difference from Q.E.F.

Typographical forms used symbolically

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Q.E.D.

Nodes37
Edges36
Triples26
Avg. degree1.95
Density0.054054
Components1

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Q.E.D.

Top relations

related to Modern philosophy · 13
Q.E.D. → Baruch Spinoza, During, Ethics, European Renaissance, For Spinoza, Latin, Meditations, Perhaps, René Descartes's, Spinoza, Spinoza's, The, Written
related to Typographical forms used symbolically · 11
Q.E.D. → Due, English, Euclid, Halmos, In, Often, On, Paul Halmos, The, This, While

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Important terminology

latin end proof use phrase used symbol proofs greek euclid quod erat meaning mathematicians authors halmos demonstrandum demonstrated abbreviation indicate

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Q.E.D. were often used to conclude proofs.Perhaps the most famous use of Q.E.D. in a philosophical argument is found in the Ethics of Baruch Spinozainstance ofand phrases0.80text
published posthumously in 1677instance ofand phrases0.80text
Q.E.D.related to Modern philosophyDuring0.60section
Q.E.D.related to Modern philosophyEuropean Renaissance0.60section
Q.E.D.related to Modern philosophyLatin0.60section
Q.E.D.related to Modern philosophyPerhaps0.60section
Q.E.D.related to Modern philosophyEthics0.60section
Q.E.D.related to Modern philosophyBaruch Spinoza0.60section
Q.E.D.related to Modern philosophyWritten0.60section
Q.E.D.related to Modern philosophySpinoza's0.60section
Q.E.D.related to Modern philosophyThe0.60section
Q.E.D.related to Modern philosophySpinoza0.60section

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