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Philosophy

The Paradoxes of Self-Reference and Logical Consistency

Quick fact

The ancient Greek philosopher Epimenides, a Cretan, famously said “All Cretans are liars,” creating an early version of the liar paradox and sparking millennia of logical inquiry.

Why this is interesting

We assume that every statement is either true or false—but what about the statement “This statement is false”? If it’s true, then it’s false; if false, then true.