The core idea of X-bar theory is that it has what is called 'bar-level projection' or 'intermediate projection', which is normally represented by X'. And X represents any of the categories N, V, Adj, Adv, P, etc.
In an NP, X' is N'. The Cambridge Grammar of The English Language calls N' nominal while calling V' VP, as follows:
Is there any reason why they don't call N' NP just as they call V' VP?
Is term 'nominal' referring to N' well received by modern linguists? Or is there any other (better) term for N'?