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Unprovable Undecidable statements in type theory

In type theory, proving a statement means to exhibit an instance/element of a type corresponding to the statement. But if the statement is unprovableundecidable, no element of the type A nor its negation A → ⊥ can be generated. How can be proven that the statement A is unprovableundecidable?

Unprovable statements in type theory

In type theory, proving a statement means to exhibit an instance/element of a type corresponding to the statement. But if the statement is unprovable, no element of the type A nor its negation A → ⊥ can be generated. How can be proven that the statement A is unprovable?

Undecidable statements in type theory

In type theory, proving a statement means to exhibit an instance/element of a type corresponding to the statement. But if the statement is undecidable, no element of the type A nor its negation A → ⊥ can be generated. How can be proven that the statement A is undecidable?

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Unprovable statements in type theory

In type theory, proving a statement means to exhibit an instance/element of a type corresponding to the statement. But if the statement is unprovable, no element of the type A nor its negation A → ⊥ can be generated. How can be proven that the statement A is unprovable?