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Logic Proof Problem.
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Logic Proof Problem.
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kartal
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Thu 13 Nov, 2008 06:01 am
I am trying to solve a natural deduction question. After I finished 4 of them the 5th one looks like a litle bit difficult.
This is my question
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kartal
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Thu 13 Nov, 2008 11:58 am
@kartal,
I Found something for my solution but Again I need some help
.
.
.
.
10.F(a, b) ^ S(b) ----> UF(a, b)
Now I need to find F(a,b) then I can use ^ intro 5.2 and F(a,b)
So I can find
achieve UF(a,b)
But my question is how I can carry F(a,b) can I assump it or is this a way to derive it from another way
bettydlgc
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Wed 10 Dec, 2008 10:26 pm
@kartal,
can you help me solve the following?
-(-P v -Q) therefore (P & Q)
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