Double sequences are important extension of the ordinary notion of a sequence. In this article we formalized three types of limits of double sequences and the theory of these limits.
@article{bwmeta1.element.doi-10_2478_forma-2013-0018,
author = {Noboru Endou and Hiroyuki Okazaki and Yasunari Shidama},
title = {Double Sequences and Limits},
journal = {Formalized Mathematics},
volume = {21},
year = {2013},
pages = {163-170},
zbl = {1298.40003},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_forma-2013-0018}
}
Noboru Endou; Hiroyuki Okazaki; Yasunari Shidama. Double Sequences and Limits. Formalized Mathematics, Tome 21 (2013) pp. 163-170. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_forma-2013-0018/
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