Can the axiom of countable choice be proved?

In summary, the axiom of countable choice is a widely accepted axiom in set theory that allows us to make choices from countable collections of sets. It is not necessary for all of mathematics, but is a useful tool in many areas. It cannot be derived from other axioms and can have consequences that may contradict certain principles in mathematics. However, it is still widely used due to its usefulness in many areas.
  • #1
gottfried
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Does anybody know if the axiom of countable choice can be proved? And if it can where I can find a copy of the proof?
 
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  • #2
Proved from which axioms?

It cannot be proven in ZF. It can be proven in ZFC (obviously).
 

FAQ: Can the axiom of countable choice be proved?

Can the axiom of countable choice be proved in mathematics?

Yes, the axiom of countable choice can be proved in mathematics. It is a widely accepted axiom in set theory and is often used in proofs involving countable collections of sets.

What is the purpose of the axiom of countable choice?

The axiom of countable choice allows us to make a choice from a countably infinite collection of non-empty sets. This is useful in mathematics, as it allows us to construct objects and prove the existence of certain mathematical structures.

Is the axiom of countable choice necessary for mathematics?

No, the axiom of countable choice is not necessary for all of mathematics. In fact, there are some areas of mathematics where it is not used at all. However, it is a useful tool in many areas and is often assumed in order to make certain proofs easier.

Can the axiom of countable choice be derived from other axioms?

No, the axiom of countable choice cannot be derived from other axioms. It is an independent axiom, meaning that it cannot be proven or disproven using other axioms.

Are there any consequences of assuming the axiom of countable choice?

Yes, assuming the axiom of countable choice can lead to some counterintuitive results in mathematics. For example, it allows for the existence of non-measurable sets and can contradict the well-ordering principle. However, it is still widely accepted and used in mathematics due to its usefulness in many areas.

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