We shall only consider finite processes (processes without recursive definitions)
- a limited handling of recursion is possible
- deciding bisimilarity for general processes is undecidable

Inference system = axioms + inference rules
- soundness: whatever I infer is correct (i.e., bisimiar)
- completeness: whatever is bisimilar, it can be inferred

#### Axioms & Rules for Strong Bisimilarity
![350](../../Pasted%20image%2020250429082812.png)