In this article, we formalize in the Mizar system [1, 7] the Lebesgue type integral and convergence theorems for non positive functions [8],[2]. Many theorems are based on our previous results [5], [6].
@article{bwmeta1.element.doi-10_1515_forma-2017-0022,
author = {Noboru Endou},
title = {Integral of Non Positive Functions},
journal = {Formalized Mathematics},
volume = {25},
year = {2017},
pages = {227-240},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_1515_forma-2017-0022}
}
Noboru Endou. Integral of Non Positive Functions. Formalized Mathematics, Tome 25 (2017) pp. 227-240. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_1515_forma-2017-0022/