null relation
[/nʌl rɪˈleɪʃən/]
nounpl: null relations
relação nula
1. In mathematics and logic, a relation between two sets where no elements from one set are connected to elements of the other set; an empty relation containing no ordered pairs
The null relation on set A is the relation that contains no pairs of elements from A.
A relação nula no conjunto A é a relação que não contém nenhum par de elementos de A.
2. In database theory, a state where no relationship or connection exists between entities or records
If two tables have a null relation, they share no foreign key constraints.
Se duas tabelas têm uma relação nula, elas não compartilham restrições de chave estrangeira.
3. In general usage, a situation or context where there is no meaningful connection or association between two or more things
There is a null relation between the two unrelated variables in this study.
Existe uma relação nula entre as duas variáveis não relacionadas neste estudo.
This is a technical term primarily used in academic and professional contexts within mathematics, logic, computer science, and database management. It has no significant cultural variations between Brazil and the United States, as it maintains consistent meaning across English and Portuguese-speaking academic communities.
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