Henri Poincaré Quote

In mathematics rigor is not everything, but without it there would be nothing; a demonstration which is not rigorous is void.


Annual Report of the Board of Regents of the Smithsonian Institution, 1909, The Future of Mathematics (p. 127)

Picture Quote 1

In mathematics rigor is not everything, but without it there would be nothing; a demonstration which is not rigorous is void.

Picture Quote 2

In mathematics rigor is not everything, but without it there would be nothing; a demonstration which is not rigorous is void.

Picture Quote 3

In mathematics rigor is not everything, but without it there would be nothing; a demonstration which is not rigorous is void.

Picture Quote 4

In mathematics rigor is not everything, but without it there would be nothing; a demonstration which is not rigorous is void.