Welcome to Incels.is - Involuntary Celibate Forum

Welcome! This is a forum for involuntary celibates: people who lack a significant other. Are you lonely and wish you had someone in your life? You're not alone! Join our forum and talk to people just like you.

Megatread of paradoxxes

Asssymetricel

Asssymetricel

Banned
-
Joined
Nov 3, 2018
Posts
405
4. THE CARD PARADOX
Imagine you’re holding a postcard in your hand, on one side of which is written, “The statement on the other side of this card is true.” We’ll call that Statement A. Turn the card over, and the opposite side reads, “The statement on the other side of this card is false” (Statement B). Trying to assign any truth to either Statement A or B, however, leads to a paradox: if A is true then B must be as well, but for B to be true, A has to be false. Oppositely, if A is false then B must be false too, which must ultimately make A true.
Invented by the British logician Philip Jourdain in the early 1900s, the Card Paradox is a simple variation of what is known as a “liar paradox,” in which assigning truth values to statements that purport to be either true or false produces a contradiction. An even more complicated variation of a liar paradox is the next entry on our list.
 
The statement below is true

The statement above is false
 
CADF83D6 E3C5 4FA4 9953 B8A988E00939
 

Users who are viewing this thread

shape1
shape2
shape3
shape4
shape5
shape6
Back
Top