Kenneth Appel, a mathematician who was the first to use a computer to prove a major mathematical theorem, has died at age 80 in Dover, N.H.The Tasker Funeral Home confirmed that Appel, who was ...

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Kenneth Appel, who has died aged 80, was a mathematician who, with his colleague Wolfgang Haken and with the aid of an IBM computer, solved a problem concerning colours on a map that had been ...

Mathematician Kenneth I. Appel used an I.B.M. computer in 1976 to prove a century-old problem concerning colors on a map, and from there computers were used to provide proofs for higher and higher ...

DOVER, N.H. — Kenneth Appel, a mathematician who was the first to use a computer to prove a major mathematical theorem, died April 19 in Dover, N.H. He was 80. Dr. Appel, a longtime educator who ...

THE image of the mathematician, in so far as people have one, has not changed for quite a while. It is Pythagoras drawing in the sand to show that the square on the triangle’s hypotenuse is equal to ...