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date: 05 April 2020

Abel, Niels Henrik (1802–29) Norwegian mathematician 

The Concise Oxford Dictionary of Mathematics

Christopher Clapham,

James Nicholson

who, at the age of 19, proved that the general equation of degree greater than 4 cannot be solved algebraically. In other words, there can be no formula for the roots of such an equation similar to the familiar formula for a quadratic equation. He was also responsible for fundamental developments in the theory of algebraic functions. He died in some poverty at the age of 26, just a few days before he would have received a letter announcing his appointment to a professorship in Berlin.... ...

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