finally, hereditary sets have arrived in the Linked Open Data cloud!
You can use the following URIs to refer to some of them or retrieve machine readable data about them:
Where index is a natural number. A set with index a is element of the set with index b iff bit a-1 of b-1 is 1.
See Von Neumann universe.
The natural number 0 (the empty set) has index 1.
The natural number 1 has index 2.
The natural number 2 has index 4.
The natural number 3 has index 12.
The natural number 4 has index 2060.
The natural number 5 has index 66185228434044942951864067458396061614989522267577311297802947435570493724401440549267868490798926773634494383968047143923956857140205406402740536087446083831052036848232439995904404992798007514718326043410570379830870463780085260619444417205199197123751210704970352727833755425876102776028267313405809429548880554782040765277562828362884238325465448520348307574943345990309941642666926723379729598185834735054732500415409883868361423159913770812218772711901772249553153402287759789517121744336755350465901655205184917370974202405586941211065395540765567663193297173367254230313612244182941999500402388195450053080385548.
The index of natural number 6 already has much more digits than the number of atoms in the know universe.
The last element of V6 - which contains all 65536 elements of V5 is here. The index of this set has 19729 decimal digits that are part of the URL - maybe your browser cannot handle this. This server should handle URLs with up to 32751 characters.