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Paul Joseph Cohen

Born 2 Apr 1934. American mathematician who received the Fields Medal (1966) for his fundamental work on the foundations of set theory. Cohen invented a technique called "forcing" to prove the independence in set theory of the axiom of choice and of the generalised continuum hypothesis. The continuum hypothesis problem was the first of Hilbert's famous 23 problems delivered to the Second International Congress of Mathematicians in Paris in 1900. Hilbert's famous speech The Problems of Mathematics challenged (then and now) mathematicians to solve these fundamental questions and Cohen has the distinction of solving Problem 1. He also worked on differential equations and harmonic analysis.«


After she woke up, a woman told her husband,
“I just had a dream that you gave me the most beautiful diamond necklace. What do you think it means?”
“You'll know tonight.” he said with a smile.
The woman could hardly think of anything else all day and she couldn't wait for her husband to return home.
That evening, the man finally came home with a small package and gave it to his wife.
Delighted, she opened it excitedly to find a book entitled…

“The Meaning of Dreams”

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