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Look at it as an exercise in math:
Assign the statement "All sentences below this sentence are true" a value of 1
Assign "The sentence above is false" a value of -1. 1 + -1 = 0.
They cancel each other out like so:
"If the sentence above is false", that means the original statement is false, thus invalidating the second statement "The sentence above is false" This makes the original statement true again, as well the second statement. One goes around in an endless loop where the sum is always zero.
Tell your teacher that he would make an excellent speech writer for a politician. While there may be no common truth, his little exercise is not proof of this. It is merely fun with semantics.
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08-27-2004, 01:23 PM
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