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Historical Mathematics
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Demonstrations 281  300 of 403
Binary Operators Satisfying Two Axioms
Gödelization
Fermat's Magic Cube
Proposition 3, Book XII, Euclid's Elements
Any Triangle Can Tile
A Lemma of Archimedes about a Bisected Segment
Tangent Points on a Semicircle
Tangent Circles and Parallel Diameters
Perpendiculars to a Chord
Proof of Proposition 28, Book XI, Euclid's Elements
Ptolemy's Theorem
Euclid's Proof of the Pythagorean Theorem
The Perpendicular Bisector of a Chord
Preferred Values of Collatz Paths
The Two Triangles Theorem
Boolean Algebra
Negligible Senescence Scenario
Conjecture de Beraha pour les cycles (French)
Conjecture de Beraha pour les roues (French)
The Chordal Theorem
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