run should be stateless but retains state

[targodan]

When calling run multiple times prolog retains any previous state. This leads to odd behavior and in particular odd output.

This is due to Prolog being a singleton class (grumble grumble grumble). Find a way to reset the state.

[targodan]

Well, now it's a feature.

Pros:

• Can split KB and queries in different cells.
• Generally all cells contribute to the same KB, enabling more flexibility in notebook design.
• As long as you don't mix queries you might want to run multiple times with your KB there should be no problem.

Cons:

• You need to restart the kernel when you make changes to your KB