Thread: [ASK] Logic Prooving

Show that these statement about real number x are equivalent (i) x is rational
(ii) x/2 is rational (iii) 3x-1 is rational.

What method that can be used to prove that?

Originally Posted by inggar1618

Show that these statement about real number x are equivalent (i) x is rational
(ii) x/2 is rational (iii) 3x-1 is rational.

What method that can be used to prove that?

Try 1 => 2 => 3 => 1
This way you would show that all three are equivalent.

thx very much..