Symbolic Logic Reasoning

Symbolic Logic Reasoning

When to use this skill

Solve Symbolic Logic Reasoning (SLR) tasks, specifically formulating a Prolog rule to classify eastbound vs. westbound trains based on their composition.

Approach

1. Analyze Train Composition: Review the ground facts (like has_car, car_color, car_len, has_wall) for positive (eastbound) and negative (westbound) examples.
2. Find Mappings: Locate a property or combination of properties that is true for all eastbound trains and false for all westbound trains.
3. Formulate Prolog Rule: Formulate the rule as eastbound(T) :- Body. (e.g. eastbound(Train) :- has_car(Train, Car), car_len(Car, short).).
4. Minimize Body Literals: Make the rule body as short and general as possible without sacrificing accuracy.

Known constraints

• The rule must perfectly separate positive and negative examples.
• Must use only predefined predicates and constants.

Examples

Good rule pattern

eastbound(Train):- has_car(Train, Car1), car_color(Car1, yellow).