In logic, specifically in deductive reasoning, an argument is valid if and only if it takes a form that makes it impossible for the premises to be true and the conclusion nevertheless to be false.
Valid S.A. is a Brazilian engraving company headquartered in Rio de Janeiro that provides security printing services to financial institutions, telecommunication companies, state governments, and public agencies in Brazil, Argentina, and Spain.
Preferred languages to be displayed in the selection menus
Please note that, in order to improve your browsing experience on this website,
BabelNet® uses various types of cookies, including: browsing functionality,
performance and statistical cookies.
By continuing to browse the site you are agreeing to our use of cookies.
OK