Having the "of" there actually is correct. It's really difficult for me to explain exactly why. This would also work: "Examples on this point would prove to be of little value." You see, if you want to ask if someone has a valuable item, you would say "Do you have anything of value?" Saying "Do you have anything valuable" works... However, "Do you have anything value" (without the of) isn't correct. Hope that helps.

mjcmjc4321 This is an example of what is called the partitive genitive. It is not possessive. The construction with ‘of’ is used to show the relationship of the part to the whole, or the relation of something considered as a part or measure of the whole. Examples Three of us.....three is part of us Most of them....most is part of them examples of little value....examples considered as a part or measure of ‘little value’ little value’s examples ..incorrect a cup of coffee…..a cup considered as part or measure of “coffee” coffee’s cup…incorrect a man of courage…a man who has some part or measure of courage courage’s man…incorrect What if I delete "of" in that sentence? The verb “to prove” is intransitive in your sentence and “of little value” is a prepositional phrase functioning as an adverb. The verb can also be transitive; therefore you could use a noun or adjective as object. Examples on this point would prove a little value… Or Examples on this point would prove little valuable…

I think the word "value" is a noun. And you should add a preposition before a noun or a pronoun. And "of" is a preposition

Thank you so much for all!