The phrase "fundamental identity" is correct and can be used in written English.
You can use it to refer to a person's defining characteristics or values that make them who they are. For example, "My fundamental identity is rooted in my family values and my faith."
But in terms of fundamental identity, the two pianists are quite different.
That's why Bill framed the choice on Tuesday as one about Wisconsin's fundamental identity.
It does not threaten your fundamental identity, but it does threaten us.
Levine says he believes the fundamental identity of Carolina barbecue is being lost, but there is hope: "Barbecue tourism has people out searching for authenticity," he says.
They discovered that under these extreme conditions, the proton and the neutron, rather than keeping their fundamental identity, revealed smaller particles (a phenomenon physicists call "deep inelastic scattering").
With his new political and theological approach, Pope Francis is doing something truly revolutionary — he is reshaping the fundamental identity of Catholicism in the 21st century.
As a result, conservation laws, solution symmetries, and the fundamental identities of the vector and tensor calculus are held for discrete models.
In [3, 4], the authors gave two fundamental identities for the number of t-matchings of a graph.
"Like you, we have wrapped our entire lives and our fundamental identities around the wonderful promises of the Gospel".
Fundamental identities may shift - from wife to mother, or, at a more intimate level, from lovers to parents.
According to the Second Fundamental Theorem of CIT, any identity between bracket polynominals can be deduced from the Three Fundamental Identities [1], [2].
