Geometry and the Imagination by David Hilbert and Stephan Cohn-Vossen
This remarkable book has endured as a true
masterpiece of mathematical exposition. There are few mathematics books that are
still so widely read and continue to have so much to offer--after more than half
a century! The book is overflowing with mathematical ideas, which are always
explained clearly and elegantly, and above all, with penetrating insight.
David Hilbert (1862-1943) was a German mathematician, recognized as one
of the most influential and universal mathematicians of the 19th and early 20th
centuries. Stephan Cohn-Vossen (1902-1936) was a German mathematician, now best
known for his collaboration with David Hilbert on the 1932 book Anschauliche
Geometrie, translated into English as Geometry and the Imagination.
See also: Grundlagen der Geometrie, translated into English as
The Foundations of
1. The Simplest Curves and Surfaces
2. Regular Systems of Points
3. Projective Configurations
4. Differential Geometry
Hilbert's famous address Mathematical Problems was
delivered to the Second International Congress of Mathematicians in Paris in
Following an extract from the address, in which
Hilbert speaks of his views on mathematics:
"To new concepts correspond, necessarily, new signs.
These we choose in such a way that they remind us of the phenomena which were
the occasion for the formation of the new concepts. So the geometrical figures
are signs or mnemonic symbols of space intuition and are used as such by all
mathematicians. Who does not always use along with the double inequality a > b >
c the picture of three points following one another on a straight line as the
geometrical picture of the idea "between"?
Who does not make use of drawings of segments and
rectangles enclosed in one another, when it is required to prove with perfect
rigour a difficult theorem on the continuity of functions or the existence of
points of condensation?
Who could dispense with the figure of the triangle,
the circle with its centre, or with the cross of three perpendicular axes? Or
who would give up the representation of the vector field, or the picture of a
family of curves or surfaces with its envelope which plays so important a part
in differential geometry, in the theory of differential equations, in the
foundation of the calculus of variations and in other purely mathematical
The arithmetical symbols are written diagrams and
the geometrical figures are graphic formulas; and no mathematician could spare
these graphic formulas, any more than in calculation the insertion and removal
of parentheses or the use of other analytical signs. "
Mind Map: A mind map is a diagram used to
represent words, ideas, tasks or other items linked to and arranged radially
around a central key word or idea. It is used to generate, visualize, structure
and classify ideas, and as an aid in study, organization, problem solving, and
Mind Map:The Foundations of Geometry by D. Hilbert
Mind Map: Hilbert's problems, List of twenty-three problems in 1900
Last updated: Aug 2, 2014.