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yes

no. ( a second opinion)

A postulate is assumed without proof. Postulate is a word used mostly in geometry. At one time, I think people believed that postulates were self-evident .

In other systems, statements that are assumed without proof are called axioms.

Although postulates are assumed when you make mathematical proofs, if you doing applied math. That is, you are trying to prove theorems about real-world systems, then you have to have strong evidence that your postulates are true in the system to which you plan to apply your theorems. You could then say that your postulates must be "proved" but this is a different sense of the word than is used in mathematical proving.

Q: Does a postulate need to be proved?

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When a postulate has been proven it becomes a theorem.

No. A postulate need not be true.

a good one

Could you please specify which postulate you are referring to?

When you need to measure the distance between two objects (to install a dishwasher, for instance), the ruler postulate is no only helpful, but necessary.

Related questions

When a postulate has been proven it becomes a theorem.

I do not believe there are any postulates: they can be proved and therefore are not postulates.

No. A postulate need not be true.

No. A postulate need not be true.

a good one

Could you please specify which postulate you are referring to?

midpoint postulate

When you need to measure the distance between two objects (to install a dishwasher, for instance), the ruler postulate is no only helpful, but necessary.

Reflexive Postulate, or Identity Postulate.

Side Angle Side postulate.

Yes, it is a similarity postulate.

Yes, it is a similarity postulate.