"""Create reasoning_engine
Generated by Phi-Octopus Eden
2025-11-06 10:46:13.815012
"""

```python
from typing import List, Dict


class ReasoningEngine:
    """
    A simple reasoning engine that processes a set of rules and facts to derive conclusions.
    """

    def __init__(self):
        self.rules: Dict[str, List[str]] = {}
        self.facts: Dict[str, bool] = {}

    def add_rule(self, rule_name: str, antecedent: str, consequent: str) -> None:
        """
        Adds a new rule to the reasoning engine.

        :param rule_name: The name of the rule.
        :param antecedent: The condition under which the rule applies (e.g., "A and B").
        :param consequent: The conclusion that follows if the antecedent is true (e.e., "C").
        """
        self.rules[rule_name] = [antecedent, consequent]

    def add_fact(self, fact_name: str) -> None:
        """
        Adds a new fact to the reasoning engine.

        :param fact_name: The name of the fact.
        """
        self.facts[fact_name] = True

    def derive_conclusion(self, rule_name: str) -> bool:
        """
        Derives a conclusion based on a given rule and existing facts.

        :param rule_name: The name of the rule to apply.
        :return: A boolean indicating whether the derived conclusion is true or false.
        """
        antecedent, consequent = self.rules[rule_name]
        conditions_met = all(fact in self.facts for fact in antecedent.split(" and "))
        return conditions_met if ' and '.join(antecedent.split(' and ').sort()) else False

    def __repr__(self):
        """
        Returns a string representation of the reasoning engine.
        """
        return f"ReasoningEngine(rules={self.rules}, facts={self.facts})"


# Example usage
if __name__ == "__main__":
    reasoning_engine = ReasoningEngine()
    
    # Add rules and facts
    reasoning_engine.add_rule("rule1", "A and B", "C")
    reasoning_engine.add_fact("A")
    reasoning_engine.add_fact("B")

    # Derive conclusion
    print(reasoning_engine.derive_conclusion("rule1"))  # Should print True

```