Hints for Exercise 7.2



Okay, you already have a negation.
What you need to do is write down a formula for it to be the negation of.
You know what that formula is. (Hint: think of premise one without the snake.)
That formula you need would be a conjunction, wouldn't it?
Well, you know how to conjoin, don't you?

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Copyright © 2005 by Martin C. Young

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