Question

Logic Help!
Prove: R
1. S -> ~T (premise)
2. T (premise)
3. ~S -> R (premise)

Answer 1

have no fear, amistre the logician is here !
:)

Answer 2

(s -> -t) = (-s -> r) prove this?

Answer 3

Prove that R is a true statement

Answer 4

lol ... first i have to understand the question

Answer 5

what does it mean that everything is a premise ?

Answer 6

That means that they gave us that information in the book, and I have to complete the proof using that information. It's like the "given."

Answer 7

I was asking amistre - what it actually means :)

Answer 8

dunno, i think thats the next chapter in class :)

Answer 9

premise i think means, assume its true

Answer 10

S -> ~T = 1 when S=0 and T = 1, 0; and when S=1 and T=0

T = 1; so S = 0

~S -> R = 1
-0 -> R = 1 when R = 1

Answer 11

Premise means it is given. It is presumed to be true.

Answer 12

S -> -T

1 -> 0 = 0
1 -> 1 = 1
0 -> 0 = 1
0 -> 1 = 1

T = 1

0 -> 0 = 1

-S -> R

1 -> 0 = 0
1 -> 1 = 1

Answer 13

Thanks. I'll go with this.

Answer 14

i got know idea how to write it out better :)