Assertion: series | /r/HasProperty | the operation
Facets:
Source sentences:
text: In modern terminology, any (ordered) infinite sequence ( a 1 , a 2 , a 3 , … ) {\displaystyle (a_{1},a_{2},a_{3},\ldots )} of terms (that is, numbers, functions, or anything that can be added) defines a series, which is the operation of adding the a i one after the other.