Dialog Window

Represents the standard Prolog console. This is used for the following porpuses:

• controlling the Inference Engine;
• displaying the GIS messages;
• displaying the execution trace;
• displaying the program's output from write predicate if the output stream doesn't assigned to a file with tell predicate.

User can control the GIS by entering the goals through this window. If the user input contain :-, then GIS considers this input as new rule and will try to parse and assert it into the internal database.