Compact closed categories provide a foundational formalism for a variety of important domains, including quantum computation. These categories have a natural visualisation as a form of graphs. We present a formalism for equational reasoning about such graphs and develop this into a generic proof system with a fixed logical kernel for reasoning about compact closed categories. A salient feature of our system is that it provides a formal and declarative account of derived results that can include 'ellipses'-style notation. We illustrate the framework by instantiating it for a graphical language of quantum computation and show how this can be used to perform symbolic computation.
In REF we introduced a formalism for reasoning about categorical models of quantum information.
Graphical reasoning in compact closed categories for quantum computation
Annals of Mathematics and Artificial Intelligence
Annals of Mathematics and Artificial Intelligence
Computer Science Mathematics