Mathematical Bunker

Mathematical Bunker

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    Miquel's theorem | plane geometry | intermediate level
    17:08

    Miquel's theorem | plane geometry | intermediate level

     23  views
    Fractional colorings and the fractional chromatic number of graphs | graph theory | advanced level
    38:10

    Fractional colorings and the fractional chromatic number of graphs | graph theory | advanced level

     26  views
    The angles between sides of triangle and altitude and circumcenter | plane geometry | intermediate
    9:36

    The angles between sides of triangle and altitude and circumcenter | plane geometry | intermediate

     38  views
    Tangential quadrilaterals, the sums of opposite sides, Pitot's theorem | plane geometry | elementary
    15:31

    Tangential quadrilaterals, the sums of opposite sides, Pitot's theorem | plane geometry | elementary

     36  views
    The two tangents to a circle from a point are equal to each other | plane geometry | elementary lev.
    6:23

    The two tangents to a circle from a point are equal to each other | plane geometry | elementary lev.

     58  views
    A median in a right triangle | plane geometry | elementary level
    11:32

    A median in a right triangle | plane geometry | elementary level

     9  views
    Proper colorings and the chromatic number of graphs | graph theory | elementary level
    13:37

    Proper colorings and the chromatic number of graphs | graph theory | elementary level

     34  views
    Cyclic quadrilaterals (= inscribed quadrilaterals) | plane geometry | elementary level
    28:31

    Cyclic quadrilaterals (= inscribed quadrilaterals) | plane geometry | elementary level

     20  views
    A tangent to a circle is perpendicular to the radius at the tangency point
    9:50

    A tangent to a circle is perpendicular to the radius at the tangency point

     29  views 1 comment
    The angle intersecting a circle with the vertex inside the circle
    6:22

    The angle intersecting a circle with the vertex inside the circle

     12  views
    The angle intersecting a circle with the vertex outside of the circle
    8:10

    The angle intersecting a circle with the vertex outside of the circle

     12  views
    The incorrect proof of the Dirac's theorem about Hamiltonian graphs on ProofWiki
    5:40

    The incorrect proof of the Dirac's theorem about Hamiltonian graphs on ProofWiki

     26  views
    The arcs of a circle cut by parallel lines are equal
    5:42

    The arcs of a circle cut by parallel lines are equal

     29  views
    Dirac's theorem about Hamiltonian graphs | graph theory
    29:14

    Dirac's theorem about Hamiltonian graphs | graph theory

     45  views
    The angle between a chord and a tangent
    12:46

    The angle between a chord and a tangent

     30  views 1 comment
    Inscribed angles
    23:34

    Inscribed angles

     40  views
    Ore's theorem about Hamiltonian graphs | graph theory
    27:13

    Ore's theorem about Hamiltonian graphs | graph theory

     24  views
    Latin squares and their existence for all orders
    15:05

    Latin squares and their existence for all orders

     28  views
    The Cantor set
    22:40

    The Cantor set

     17  views
    Extreme value theorem
    16:32

    Extreme value theorem

     27  views
    The power of the adjacency matrix of a graph as the numbers of paths between vertices
    35:36

    The power of the adjacency matrix of a graph as the numbers of paths between vertices

     22  views
    Boundedness theorem
    12:22

    Boundedness theorem

     19  views
    Ramsey's theorem for 2 colors
    37:46

    Ramsey's theorem for 2 colors

     16  views
    Euler's theorem about Eulerian cycles in graphs
    15:48

    Euler's theorem about Eulerian cycles in graphs

     29  views
    The Petersen graph is not Hamiltonian
    17:58

    The Petersen graph is not Hamiltonian

     21  views
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