Question

principles of math:
show that A V B cab be written using only the connectives ¬ and ∧

Answer 1

So I recommend you to work with a truth-table. These are the Laws Of De-Morgan

Answer 2

Basically you want to prove the following identity

\[A \vee B = \neg (\neg A \wedge \neg B) \]

Answer 3

Thanks!

Answer 4

You're welcome, you know how to prove this statement?

Answer 5

I'll try it out but I think I get the concept

Answer 6

very good, in case you need help don't hesitate to write it down here. I will be back later!

Answer 7

Ok sounds good thanks again