Kmoch's glossary is vey idiosyncratic, but his analysis of pawn levers is strangely something that has been under mentioned in middlegame treatises. Indeed, pawn levers are at the heart of understanding the KID IMO....
Pawn Power in Chess by Hans Kmoch - Glossary of Terms

The book does not mention the idea of "minority attack' but it does seem to lay the foundations to understanding it. This I think is very interesting also.

The book does not mention the idea of "minority attack' but it does seem to lay the foundations to understanding it. This I think is very interesting also.
In fact, Kmoch does discuss "minority attack" in Section V-6, relating to the pawn formation of Diagram 106 (which illustrates the so-called "Carlsbad" pawn structure). Several paragraphs following said diagram he says (quote).....
"The lever action with P-QN4-N5 commonly called 'minority attack' opens the QN-file or the QB-file..."

An introduction to the Minority Attack and the Carlsbad pawn structure...
Top Ten Middlegame Ideas #4: Minority Attack - The Carlsbad structure - Jim's Chess Channel
https://www.youtube.com/watch?v=CPKor-4NTug&list=PLPaM3qJ0ieXtElQbC5glNh2J6QRfxC45b&index=16
Nevermind, I understand it now. There's the local central majority. (White has pawns on Q and K files). Hans Kmoch is talking about a central majority. Taking away indeed disrupts this central pawn majority. Taking towards the center fortifies the central pawn majority.
White has double pawns on the d-file but the rear-twin is here the helper's helper. Blacks Q4 will fall with white's K-K5! This means a central duo and with a potential passer on the e-file.