## lalazx7 3 years ago Construct a truth table for ~q → p.

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1. ParthKohli

2. UnkleRhaukus

$\begin{array}{|c|c|c|}\hline q&\sim q&p&\sim q\rightarrow p\\\hline T&&T&\\T&&F&\\F&&T&\\F&&F&\\\hline\end{array}$

3. UnkleRhaukus

what did you get for the ~q column @lalazx7

4. lalazx7

I don't u understand how to work the problem from the beginning, can yiu simplify

5. ParthKohli

@UnkleRhaukus \neg q

6. UnkleRhaukus

$\begin{array}{|c|c|}\hline q&\sim q\\\hline T&\\T&\\F&\\F&\\\hline\end{array}$

7. ParthKohli

@lalazx7 Do you know what a truth table is?

8. myininaya

2 variables means you will have 4 rows The 2 variables are p and q. I do every possible combination I can think of TT TF FT FF Then I do the other columns

9. ParthKohli

Here is how you set up: p q ~q ~q->p

10. UnkleRhaukus

when the statement is is true the negation of the statement is false, when the statement is false the negation of the statement is true

11. lalazx7

No I have never seen this before

12. UnkleRhaukus

13. Matrix65

whats the oposite of true(T) @lalazx7

14. lalazx7

Ok thanks anyway False

15. UnkleRhaukus

$\begin{array}{|c|c|}\hline q&\sim q\\\hline T&F\\T&F\\F&\\F&\\\hline\end{array}$, now what is the opposite of false

16. lalazx7

Oh ok I get it now

17. lalazx7

Duh, I'm so silly