SOLUTION: I'm not positive how to write the symbols on a computer so hopefully I do this right. I need help doing the proof of: (P^G)⇒R, (R^S)⇒T, P^S, G∨R /(therefore) R&#8

SOLUTION: I'm not positive how to write the symbols on a computer so hopefully I do this right. I need help doing the proof of: (P^G)⇒R, (R^S)⇒T, P^S, G∨R /(therefore) R&#8

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Question 361792: I'm not positive how to write the symbols on a computer so hopefully I do this right. I need help doing the proof of: (P^G)⇒R, (R^S)⇒T, P^S, G∨R /(therefore) R∨T. Thanks!
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

One of the givens is

,

So let's first assume

We are given

So now we have

Hence by

We have

And therefore

But if

Then from

We can deduce

And therefore

John

My calculator said it, I believe it, that settles it

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