Set theory, the mathematical study of collections of objects, forms a foundation for much of modern mathematics, while cardinal functions provide a means to quantify the sizes of these sets, ...

Set theory serves as a foundational pillar in mathematics, providing the language and tools necessary to discuss infinite collections. A central focus within this discipline is the study of cardinal ...

The concept of just war, which has guided Catholic teaching on war and peace since the fourth century, has become "devalued as a moral instrument" due to its application in modern conflicts, said ...