Question: The stack exchange question "Is there any concrete-solid proofs of this space odyssey?" made me want to edit it to remove the s in proofs (someone with enough flair did), however it made me wonder about the plurality of *any* and *proofs*.

So please enlighten me about which one is correct.

> 
> Is there any concrete-solid proof of this space odyssey?  
> 
>  Are there any concrete-solid proofs of this space odyssey?
> 
> 
> 

If the asker wants to hear about at least one proof, the first one is OK, but what is correct if he wants at least two pieces of evidence?

Answer: 
My grammar book (*English Grammar*, David Daniels and Barbara Daniels) reports that the indefinite pronoun *any* is either singular or plural. 

> 
> Someone asked him for a match, but Joe didn't have any.  
> 
>  Do you have any tips to pass on?  
> 
>  I don't have any choice.
> 
> 
> 

In your example, I would use "Is there any concrete-solid proof of this space odyssey?" because if there isn't a single proof, then there aren't two proofs either.
'Is there any proof?' sounds better, but proofs is OK because you can say 'evidences'

'Present your evidences to the court.'