Question

Verify that it's a tautology without using a truth table.
link : http://math.stackexchange.com/questions/644366/verify-a-tautology-without-a-truth-table

only d and e

Answer 1

@SithsAndGiggles

Answer 2

there's an r in there... there's not that many laws I can use with r... :/ only distributive and associative.

Answer 3

I want to work on the left side so I can achieve the same result as the right side on the first line. I try to substitute probably to make it simpler, but I got a bigger mess

Answer 4

Hi b i t c h

Answer 5

im back mothercuker

Answer 6

lol the troll responded. ..

Answer 7

@ganeshie8 would you please remove therapyforYOU he's been cussing a storm

Answer 8

@wolfe8