Theorem of Moréra

The theorem of Moréra is a Théorème of Analyze complexes which stipulates that all function whose Intégrale along a Triangle is null holomorphic is : if U is open plane complex, F a function defined on U and so for any triangle Δ included in U one partial a:

$\backslash \; int\_\; \{\backslash \; \backslash \; Delta\}\; F\; (Z)\; dz=0$,