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a123

  • 4 years ago

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

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  1. fiddlearound
    • 4 years ago
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    have no fear, amistre the logician is here ! :)

  2. amistre64
    • 4 years ago
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    (s -> -t) = (-s -> r) prove this?

  3. a123
    • 4 years ago
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    Prove that R is a true statement

  4. amistre64
    • 4 years ago
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    lol ... first i have to understand the question

  5. fiddlearound
    • 4 years ago
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    what does it mean that everything is a premise ?

  6. a123
    • 4 years ago
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    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."

  7. fiddlearound
    • 4 years ago
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    I was asking amistre - what it actually means :)

  8. amistre64
    • 4 years ago
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    dunno, i think thats the next chapter in class :)

  9. amistre64
    • 4 years ago
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    premise i think means, assume its true

  10. amistre64
    • 4 years ago
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    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

  11. a123
    • 4 years ago
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    Premise means it is given. It is presumed to be true.

  12. amistre64
    • 4 years ago
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    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

  13. a123
    • 4 years ago
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    Thanks. I'll go with this.

  14. amistre64
    • 4 years ago
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    i got know idea how to write it out better :)

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