The Logic of Attributional and Relational Similarity

In a previous post, I discussed the distinction between attributes and relations:
An attribute is a characteristic of an entity, whereas a relation is a connection between two or more entities. In logic, we can define an attribute as a predicate with one argument and a relation as a predicate with two or more arguments. The [...]

Analogy and Logic

Aristotle’s theory of syllogism (in Prior Analytics) is often cited as the origin of modern logic. He also had a theory of analogy (in Poetics), which he put to practical use in reasoning about ethics (in Nichomachean Ethics). It seems that he believed logic and analogy were both valid forms of reasoning. The majority view [...]