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Izidor Hafner
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Demonstrations 41  60 of 787
Toroid with 24 Congruent Faces
Parametrized Toroid with 42 Faces
Realization of Heawood's Map on a Toroidal Polyhedron
Polyhedral Blooms that Retain Symmetry
South Pacific Currents and Dispersion of Coconuts
Blooms from the Campanus Sphere
Definitions of TwoPlaced Connectives in Lesniewski's Protothetic
Threefold ColorTurning Wallpaper Functions
An American High School Mathematics Examination Question
Toroidal Polyhedra
PartWhole Relations
Euler Circles for Categorical Syllogisms
The Ontological Vocabulary
Plotting Rational Functions of a Complex Variable
Polyhedral Blooms
3D Plots of Rational Functions of a Complex Variable
Superposed Contour and Parametric Plots in the Complex Plane
The Ontological Table
Protothetic
Wallpaper on the Poincaré HalfPlane
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