Which ordered pairs need to be added to the universal relationp = X^2on the set X = {a,b,c,d} to create the transitive closure p^t of p? A (a,a) B (a,b) C (a,c) D (a,d) E (b,a) F (b,b) G (b,c) H (b,d) I (c,a) J (c,b) K (c,c) L (c,d) M (d,a) N (d,b) O (d,c) P (d,d) Q None of them
Question
Which ordered pairs need to be added to the universal relationp = X^2on the set X = {a,b,c,d} to create the transitive closure p^t of p? A (a,a) B (a,b) C (a,c) D (a,d) E (b,a) F (b,b) G (b,c) H (b,d) I (c,a) J (c,b) K (c,c) L (c,d) M (d,a) N (d,b) O (d,c) P (d,d) Q None of them
Solution
Para crear el cierre transitivo de la relación en el conjunto , primero debemos entender qué significa el cierre transitivo. El cierre transitivo de una relación es la relación más pequeña que contiene a y es transitiva.
Dado que , esto significa que contiene todos los pares ordenados posibles en . Es decir, .
Para que sea transitiva, si y , entonces . Dado que ya contiene todos los pares posibles, ya es transitiva.
Por lo tanto, no es necesario agregar ningún par ordenado adicional para crear el cierre transitivo de .
La respuesta correcta es:
Q. None of them
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