Cauchy's sum theorem first appeared in 1821 and in a revised version
in 1853. Our interpretation of the sum theorem was challenged by
scholar A
and
scholar A'
and was published in 2018; see
http://dx.doi.org/10.1007/s10699-017-9534-y
and
https://arxiv.org/abs/1704.07723
Cauchy
Infinitesimal topics
Publications on the mathematics, history,
and philosophy of infinitesimals