In this article we prove Cauchy-Riemann differential equations of complex functions. These theorems give necessary and sufficient condition for differentiable function.
@article{bwmeta1.element.doi-10_2478_v10037-009-0016-8,
author = {Hiroshi Yamazaki and Yasunari Shidama and Yatsuka Nakamura and Chanapat Pacharapokin},
title = {The Cauchy-Riemann Differential Equations of Complex Functions},
journal = {Formalized Mathematics},
volume = {17},
year = {2009},
pages = {147-149},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.doi-10_2478_v10037-009-0016-8}
}
Hiroshi Yamazaki; Yasunari Shidama; Yatsuka Nakamura; Chanapat Pacharapokin. The Cauchy-Riemann Differential Equations of Complex Functions. Formalized Mathematics, Tome 17 (2009) pp. 147-149. http://gdmltest.u-ga.fr/item/bwmeta1.element.doi-10_2478_v10037-009-0016-8/
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