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===Predicados===

===Predicados===

What we have briefly described so far is the logic of propositions. A proposition asserts something about specific mathematical objects such as: '2 is greater than 1, so 1 is less than 2' or 'a square has no 5 sides then a square is not a pentagon'. Many times, however, the mathematical statements concern not the single object, but generic objects of a set such as: '''<math>X</math>'' are taller than 2 meters' where ''<math>X</math>'' denotes a generic group (for example all volleyball players). In this case we speak of predicates.

Lo que hemos descrito brevemente hasta ahora es la lógica de las proposiciones. Una proposición afirma algo sobre objetos matemáticos concretos, como por ejemplo "2 es mayor que 1, por lo que 1 es menor que 2" o "un cuadrado no tiene 5 lados, por lo que un cuadrado no es un pentágono".. Many times, however, the mathematical statements concern not the single object, but generic objects of a set such as: '''<math>X</math>'' are taller than 2 meters' where ''<math>X</math>'' denotes a generic group (for example all volleyball players). In this case we speak of predicates.

Intuitively, a predicate is a sentence concerning a group of elements (which in our medical case will be the patients) and which states something about them.

Intuitively, a predicate is a sentence concerning a group of elements (which in our medical case will be the patients) and which states something about them.