show that if ais A subset B,Then C-B is subset of C-A Share with your friends Share 10 Priyanka Kedia answered this Given, A⊂B⇔x∈A⇒x∈B⇔~x∈B⇒~x∈A⇔x∉B⇒x∉A ......1 Contrapositive of an implicationNow,Let x∈C-B⇒x∈C and x∉B⇒x∈C and x∉A from 1⇒x∈C-Ax∈C-B⇒x∈C-A⇔C-B⊂C-A 36 View Full Answer
