The phrase "a core purpose of" is correct and usable in written English.
You can use it to describe the fundamental reason or main objective behind something, such as a project, organization, or initiative.
Example: "A core purpose of our organization is to promote environmental sustainability and raise awareness about climate change."
Alternatives: "a primary goal of" or "a fundamental aim of".
It gives them the chance to say clearly why the matching-funds provision carries out a core purpose of the Constitution.
William K. Marimow, the paper's editor, said he considered a newspaper's "pulling out all the stops on a presidential race" to be in service of "a core purpose of the First Amendment".
That's a core purpose of Facebook's big long-term investment in its Artificial Intelligence research lab.
A core purpose of the Declaration of Independence was to define the relationship between individuals and their government, which was to play a supporting role.
Thus it can be inferred that creating individuals' entrepreneurial orientation will pay off organization in shape of increased performance, a core purpose of existence.
Scientists have long speculated that one of the functions of sleep is to restore and repair the brain, but whether this is a "core" purpose of sleep remains controversial.
The former BBC boss said that the broadcaster had "a core purpose as a benchmark of high-quality news and current affairs" and it "shouldn't be pulling back on a fast-developing platform.
A togetherness evident in the Nepalese people who have maintained a core purpose in the face of their changed circumstances.
Put another way, the policy conceit that spending money on patients who die is a waste overlooks the core purpose of health care — to prevent or forestall illness, disability and death among patients at risk of those outcomes.
In-depth interviews conducted with eight event managers of small-scale events revealed that the managers perceived grant funding offered to promote tourism leveraging to be a diversion from the core purpose of staging the event.
The idea behind any API like this is to give developers who lack expertise in a particular area outside the core purpose of their application, easy access to a particular type of functionality.
