Assertion: pascal | /r/CapableOf | aid his father
Facets:
value: with the collection of taxes
type: OTHER
Source sentences:
text: Switching gears, Pascal built one of the first digital calculators in 1642 to aid his father, a mathematician and tax collector, humbly dubbing it the pascaline.
text: To help his father out with the collection of taxes, Pascal also designed and invented a primitive calculator.
text: He had been assisting his father, who worked as a tax commissioner, and sought to produce a device which could reduce some of his workload.