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Redefining Reality - The Intellectual Implications of Modern Science

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Which number rules are true? <strong>The</strong> easy answer would be that there<br />

<br />

<br />

<br />

not establish a complete set <strong>of</strong> rules for arithmetic.<br />

<br />

sentences similar to the sentence “This sentence is false.” If it is<br />

true, then it is false, but if it is false, then it is true.<br />

Any attempt to create rules would allow such sentences as<br />

“This sentence is unprovable” to be proven; thus, we would<br />

have sentences that can be proved but are false. Alternatively,<br />

we could strengthen the rules to exclude these sentences,<br />

but then, because we can no longer prove the sentence “This<br />

sentence is unprovable,” we would have true sentences that<br />

cannot be proved, making the system incomplete.<br />

<br />

Any set <strong>of</strong> rules would either be unsound (include false<br />

sentences) or incomplete (not allow all true sentences to<br />

be proved).<br />

<br />

<br />

Interestingly, the collapse <strong>of</strong> certainty<br />

<br />

<br />

came from Britain in the late 1800s:<br />

Lewis Carroll’s <br />

in Wonderland and Edwin Abbott<br />

Abbott’s <br />

Many Dimensions.<br />

<br />

Alice in Wonderland was written<br />

by Lewis Carroll, the pen name<br />

<strong>of</strong> Charles Lutwidge Dodgson, a<br />

mathematical logician at Oxford.<br />

Because <strong>of</strong> the ascent <strong>of</strong> non-<br />

Euclidean geometry and the attempts<br />

In Alice in Wonderland<br />

<br />

<br />

<br />

<br />

<br />

<br />

© Darren Hendley/iStock/Thinkstock.<br />

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