Remark. [00B0]
Remark. [00B0]
The cauchy product captures the idea of putting both an -structure and a -structure on by writing as a coproduct of and putting an -structure one one summand and a -structure on the other.
The cauchy product captures the idea of putting both an -structure and a -structure on by writing as a coproduct of and putting an -structure one one summand and a -structure on the other.