A relation R satisfying
f R g <=> For all a, b, a R b => f a R g b
This definition, by Plotkin, can be used to extend the definition of a relation on the types of a and b to a relation on functions.
There does not appear to be any logical relation between the copyright protection and the duration of the life of the author.
Yet as I look back I see no logical relation in the process.
The logical relation between individual and genus stuck upside down in the brain of the noble Plato.
What concerns us here is the convertibility of a logical relation.
They see its logical relation to the future to which they look forward.
Have every figure in some logical relation to its group, and then the group in relation to the other parts.
The development of every branch of physical knowledge presents three stages which, in their logical relation, are successive.
Freedom of criticism is, in our country, a positive lever for bringing morale into logical relation to events.
What is the logical relation between fact and truth, between fact and fiction, and between truth and fiction?
In fact, however, the conclusions formed in dreams are often without any logical relation with the premises.