# Revision history of "Category:Pigeonhole principle"

• (cur | prev) 09:42, 18 May 2010‎ ‎ . . (263 bytes) (+263). . (Created page with 'The pigeonhole principle states that if $n$ objects (pigeons) are to be placed in fewer than $n$ sets (holes), then at least one set must contain more than one object. Puzzles i…')