The phrase "a relation in" is correct and usable in written English.
It can be used in contexts discussing connections or associations within a specific framework or system.
Example: "In mathematics, a relation in set theory defines how elements from two sets are associated with each other."
Alternatives: "a connection in" or "an association in".
There is also evidence of a relation in old age between regional cortical shrinkage and increased task-related activation in neuroimaging, suggesting that losses in regional brain integrity drive functional reorganization that compensates/masks cognitive losses from the atrophy [ 17].
7 We recently showed with data from three of the Midspan studies that body mass index (BMI) was strongly related to liver disease in men, with some evidence of a relation in women.
Bridie's mother and other people in our lane and lanes beyond will come to the door to ask Dad if he'll write a letter to the government or to a relation in a distant place.
My own life had been one of order and balance, founded on grammar and taste and impeccable manners, and yet something about the man across the room seemed oddly familiar, like someone I already knew, a relation in the family, some critical presence or weight like my father, looming beyond scale or size.
In other words, the score of a relation in a shorter sentence is higher than the score of a relation in longer sentences.
And this relation is not a relation in the hierarchy of finite types.
Specifically, we use ontology in the CF part and improve ontology structure by eliminating uniformity of edges of the hierarchical relation between concepts (IS-A relation) in item ontology in the CBF part.
We use the ontology network as domain knowledge to detect the missing is-a relations in these ontologies.
Let (mathcal{T}) be a linear relation in a Hilbert ℋ with inner product (langlecdot, cdotrangle).
Let L be a lattice and I be an ideal of L. Define a relation '≡' in L by x ≡ y ( mod I ) if and only if x ∨ a = y ∨ a and x ∧ a ′ = y ∧ a ′ for some a, a ′ ∈ I.
Define a relation '∼' in L by x ∼ y if and only if x ∧ a = y ∧ a for all x, y ∈ L. Then we can see that the relation ∼ is an equivalent relation on L. Definition 4.6 Let L be a lattice and I = 〈 a 〉 be a principal ideal of L. We call I a semi-standard ideal if it satisfies the following condition: x ∼ y implies ( x ∨ b ) ∼ ( y ∨ b ) for all b ∈ I.
