Algebra, Geometry, International Mathematical Olympiads, Recreational Mathematics, Math contests, Puzzles, Brainteasers, Number Theory, Combinatorics, Logic, Paradox
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Algebra, Geometry, International Mathematical Olympiads, Recreational Mathematics, Math contests, Puzzles, Brainteasers, Number Theory, Combinatorics, Logic, Paradox
Ο James Abram Garfield (1831–1881) 20ος Πρόεδρος των Η.Π.Α.
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