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Guest Message by DevFuse
 

tanay

Member Since 07 Aug 2012
Offline Last Active Aug 07 2012 07:46 AM
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Posts I've Made

In Topic: Double Liar Paradox (Jourdain's paradox)

07 August 2012 - 07:40 AM

hey guys think in this way
let
P:

THE SENTENCE ON THE OTHER SIDE OF THIS CARD IS TRUE.
&
Q:

THE SENTENCE ON THE OTHER SIDE OF THIS CARD IS FALSE.



now let us assume P is true which means Q is true.Now Q says P is false ,a contradiction,so P is false.

From above we concluded P is false so it means Q is false(what P says of Q is wrong).Now Q being false says wrong about P.Thus, P is true ,again contradiction.

This way we can start with Q and show that it too has no truth value(neither true nor false).



So, these statements mean nonsense although individually they seem to be logical statements.

Hence, it's all paradoxical

I hope i have conveyed it clearly :-)