Both are compound prepositions that have a gerund or a noun as its object. We use them to express purpose.
"For the purpose of" and "with the purpose of" are compound prepositions that have a gerund or a noun as its object. They can be used to express purpose or describe why something happens.
We had a meeting for the purpose of evaluating results.
The enemy came here with the purpose of carrying out the attack.
When using this preposition to start a sentence, include a comma after the introductory phrase.
For the purpose of helping others, she volunteers in her community.
For the purpose of helping others she volunteers in her community.
Be aware that the prepositional phrases "for the purpose of" and "with the purpose of" are mainly used in formal language.
Generic measures have been used for the purpose of studying specific diseases.
In more informal situations, use "to + infinitive" instead.
He used an effective file recovery software to repair the corrupted file.
He used an effective file recovery software for the purpose of repairing the corrupted file.
Typically followed by a noun or a noun phrase, "for the purpose of" can also be used as a synonym of "with regard to".
For the purpose of this discussion, let us assume that the President will be reelected.
Remember, this construction is followed by a noun or a verb in the gerund, and not by an infinitive.
They went to Dallas for the purpose of making business contacts.
They went to Dallas for the purpose of make business contacts.
The following synonyms of "for the purpose of" and "with the purpose of" can be used to express purpose as well: