%0 Journal Article %T More on the Continuity of Real Functions %A Keiko Narita %A Artur Kornilowicz %A Yasunari Shidama %J Formalized Mathematics %@ 1898-9934 %D 2011 %I %R 10.2478/v10037-011-0032-3 %X In this article we demonstrate basic properties of the continuous functions from R to Rn which correspond to state space equations in control engineering. %U http://versita.metapress.com/content/e800j47n4335p217/?p=658b2d43fa40440da7468f05f78cc441&pi=2