👉 Semicardinal, also known as a semi-cardinal or a cardinal number, is a type of cardinality in mathematics. It is defined as the unique positive integer that can be expressed as one more than an infinite countable ordinal. In other words, it represents the largest possible cardinality of a set without any additional elements. Semicardinals are important in many branches of mathematics and logic, particularly in the study of ordinal numbers and cardinals.
