SOLUTION: H => J ------- :. ~J => ~H I know to use the box and that there will be a box inside the first box which will include the negation in rule. I'm just not quite sure how they

Question 1006156: H => J
-------
:. ~J => ~H

I know to use the box and that there will be a box inside the first box which will include the negation in rule. I'm just not quite sure how they all go together.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
I'm not sure what you mean by "box"

Here is how I'd do the proof

Number	Statement	Lines Used	Reason
1	H => J
:.	~J => ~H
2	~H v J	1	Material Implication
3	J v ~H	2	Commutation
4	~~J v ~H	3	Double Negation
5	~J => ~H	4	Material Implication

RELATED QUESTIONS
Please show your work I have a final coming upComparing Volumes Suppose you have two... (answered by Boreal,josgarithmetic)

I can't figure out how to do this one. The volume of a rectangular box 8cm high is... (answered by stanbon,MathTherapy)

Two boxes contain parts. The first box has 9 parts, of which 8 are standard. The second... (answered by Edwin McCravy,mccravyedwin)

The area of one side of a box is 120cm^2. The area of another side of the box is 72cm^2.... (answered by richwmiller,ewatrrr)

A rectangular box measures 4 ft. by 4 ft. by 3 ft. Will you be able to fit a 6 ft... (answered by unlockmath)

A rectangular box is to used to store radioactive materials.The inside of the box is... (answered by checkley71)

A box of tickets averages out to be 75, and the SD is 10. 100 draws are made at random... (answered by Theo)

I have this math homework that is giving me a hell please help. I need to know which... (answered by jerryguo41)

Suppose that the height of a box is to be 1 foot. Determine which shape for the bottom... (answered by ankor@dixie-net.com)