Analysis of information sources in references of the Wikipedia article "Combinatorics" in English language version.
In my opinion, combinatorics is now growing out of this early stage.
... combinatorial theory has been the mother of several of the more active branches of today's mathematics, which have become independent ... . The typical ... case of this is algebraic topology (formerly known as combinatorial topology)
... combinatorial theory has been the mother of several of the more active branches of today's mathematics, which have become independent ... . The typical ... case of this is algebraic topology (formerly known as combinatorial topology)
In my opinion, combinatorics is now growing out of this early stage.