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#whitehead_problem

Whitehead problem

In group theory, a branch of abstract algebra, the Whitehead problem is the following question:Is every abelian group A with Ext1(A, Z) = 0 a free abelian group?

Mon 11th

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Whitehead problem J. H. C. Whitehead Undecidable problem Alfred North Whitehead Abelian group Diamond principle Whitehead torpedo Gödel's incompleteness theorems List of homological algebra topics Free module
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