Assertion: complex number | /r/HasProperty | studied at length
Facets:
value: by others in the eighteenth century
type: OTHER
value: by a swiss family of mathematicians
type: OTHER
Source sentences:
text: Imaginary numbers did not fully become a part of mathematics, however, until they were studied at length by French-English mathematician Abraham De Moivre (1667–1754), a Swiss family of mathematicians named the Bernoullis, Swiss mathematician Leonhard Euler (1707–1783), and others in the eighteenth century.