MATH 3345 Lecture Notes - Lecture 10: Rational Number, If And Only If, Internet Key Exchange

• School: Ohio State University
• Department: Mathematics
• Course: MATH 3345
• Professor: Rodica Costin

Document Summary

Ex 5 a os y is is even proof assume xy is even. Odd and not to not is x it is even. Fl e 27 y true arrive even odd even x is that at a contradiction and y is not is odd even os y is either. This is conditional is then xy contradiction true. Nfo x hut that hen m n c 27 ten fm. 80 let a mand b in then n there n. Ex 4. 26 irrational number is called e ti which irrational is. A and y irrational be is at arrive rational. Proof assume x e q and y irrational contradiction to. Assume that xty is if x c iq then y c iq this so xty is proved then t cx ty c iq ewe proved. So x men for n 40 new is that in. 2h7 so he is he is is even as even so.