# Lobachevski

[lō′bə-chĕf′skē]

- Russian mathematician who was a pioneer of non-Euclidean geometry.

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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## Examples from the Web for lobachevski

### Historical Examples

#### Lobachevski has proved not, by creating non-Euclidean geometry.

#### There is a sort of opposition between Riemann's geometry and that of Lobachevski.

#### Thus, however far the consequences of Lobachevski's hypotheses are pushed, they will never lead to a contradiction.

#### The two-dimensional geometries of Riemann and Lobachevski are thus correlated to the Euclidean geometry.

#### Beltrami has shown that the geometry of these surfaces is none other than that of Lobachevski.