The phrase "proper extent" is correct and usable in written English.
It can be used when discussing the appropriate or suitable degree or limit of something.
Example: "The project was completed to a proper extent, ensuring all requirements were met without excess."
Alternatives: "appropriate level" or "suitable degree."
The disclosure is likely to reignite longstanding debates in the US over the proper extent of the government's domestic spying powers.
The nine-member panel could not reach a consensus on reforming the Human Rights Act or the proper extent of judicial allegiance to Strasbourg.
If I were to live long enough and develop as an artist to the proper extent, I would like to write a comic novel about a woman — and what is more comic and terrible than the angular intellectual proud woman approaching God inch by inch with ground teeth?" Was O'Connor instinctively recoiling from her own reflection in the mirror?
Libertarians have attempted to define the proper extent of individual liberty in terms of the notion of property in one's person, or self-ownership, which entails that each individual is entitled to exclusive control of his choices, his actions, and his body.
So, in hindsight none of the functions were truly applicable to the proper extent in the linear drift model [3].
One of the other limitations is the store accumulation which should be kept in a proper extent.
The experiments in Section 3 show that with a proper smoothing extent, it generates better results than conventional smoothing method.
We performed the subgroup analysis to evaluate proper surgical extent (hemi-thyroidectomy vs. total thyroidectomy) in R0 resection cases.
Cities can be classified based on the cities proper (administrative), the extent of the urban area, or the metropolitan regions [1].
To what extent proper macrophage activation depends on bioenergetic rearrangement, however, remains poorly understood.
High permeability of pure water and high retention of permeability in silica suspension can be obtained under proper control of the extent of these phase transitions.
