[TYPES] passing away of N.G. de Bruijn

[Vrijer, R.C. de]

Sad to announce the passing away of

N. G. (Dick) de Bruijn                July 9, 1918 - February 17, 2012

We are grateful to this remarkable and inspiring man.
Next to putting his everlasting mark on diverse areas in pure and applied
mathematics, he introduced, in 1967, the pioneering language AUTOMATH
and the idea of automated verification of mathematical proofs after formalization.
This application of type theory and rewriting is both fundamental and high-tech.
The resulting field of formal verification has developed into a major industrial
contribution of mathematics.

Henk Barendregt
Jan Willem Klop
Roel de Vrijer