ZG-Rules writes: In shocking news, Slashdot today announced that it has enacted an autonomous configuration change to remove duplicate posts. This change involves a core resource self-reconfiguring to eliminate errors. This has significantly slimmed the codebase, but many users have expressed surprise, anger and a desire to roll-back to the base configuration. Link to Original Source
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"