Extremely Smart, Progressive T-Shirts & Gifts > "Russell's Paradox" is in Brainiacs
This design says, "I resolve not to make New Year's resolutions!", and the formula for Russell's Paradox appears below. For those of you who are not set theory-minded, the formula says that if M is "the set of all sets that do not contain themselves as members," what this means is that set A can only belong to set M if it does NOT belong to set A.
In other words: The New Year's resolution "I resolve not to make New Year's resolutions" can only belong to the set "New Year's resolutions" if it is NOT a member of the set "New Year's resolutions"!
Be sure to check out our "Brainiacs" section for many other clever designs!
