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Caractère
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- Ce qu’il fallait démontrer. Unicode : U+220E.
Références
[modifier le wikicode]- Unicode, Inc., Mathematical Operators, The Unicode Standard, version 12.1, 2019
Conventions internationales
[modifier le wikicode]Étymologie
[modifier le wikicode]- Du symbole ■ (carré noir) ou □ (carré blanc) introduit en mathématiques par Paul Halmos[1].
Symbole
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- (Mathématiques) Ce qu’il fallait démontrer.
Vocabulaire apparenté par le sens
[modifier le wikicode]Références
[modifier le wikicode]- ↑ The symbol is definitely not my invention — it appeared in popular magazines (not mathematical ones) before I adopted it, but, once again, I seem to have introduced it into mathematics. It is the symbol that sometimes looks like □, and is used to indicate an end, usually the end of a proof. It is most frequently called the 'tombstone', but at least one generous author referred to it as the 'halmos'. — (Paul R. Halmos, I Want to Be a Mathematician: An Automathography, 1985, p. 403)