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To disprove this all you need to do if find one example of a prime that is not even. Such an example is called a counterexample.
If a statement that all such and such or every such and such has a certain property, all you have to do to disprove it it to demonstrate the existence of on such and such that lacks the property .
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Every permutation can be written as a product of transposition. How to prove or just apparently?
Prove it using deduction._______First you prove, that every permutation is a product of non-intercepting cycles, which are a prduct of transpsitions
Proof or Disprove 'If every proper subgroup of G is cyclic then G must be cyclic'?
No! Take the quaternion group Q_8.
What number will produce a rational number when multiplied by 0.5?
Any and every rational number.
Prove that countable space is countable?
prove that every metric space is hausdorff and first countable
What number multiply by 19?
Every number can be multiplied by 19.Every number can be multiplied by 19.Every number can be multiplied by 19.Every number can be multiplied by 19.
