"""Create fact_checker
Generated by Phi-Octopus Eden
2025-11-08 04:00:01.415934
"""

```python
from typing import List, Dict

class FactChecker:
    """
    A simple fact-checking system that evaluates statements against known facts.
    
    Attributes:
        facts (Dict[str, bool]): A dictionary mapping factual claims to boolean values indicating their truthfulness.
    """

    def __init__(self):
        self.facts = {}

    def add_fact(self, claim: str, is_true: bool) -> None:
        """
        Adds a new fact or updates the status of an existing one.

        Args:
            claim (str): The factual statement to be checked.
            is_true (bool): Whether the given claim is true (True) or false (False).
        """
        self.facts[claim] = is_true

    def check_fact(self, claim: str) -> bool:
        """
        Determines if a fact is true based on the system's current knowledge.

        Args:
            claim (str): The factual statement to be checked.
        
        Returns:
            bool: True if the claim is considered true, False otherwise.
        """
        return self.facts.get(claim, False)

    def check_statements(self, claims: List[str]) -> Dict[str, bool]:
        """
        Checks multiple statements against the system's knowledge base.

        Args:
            claims (List[str]): A list of factual statements to be checked.

        Returns:
            Dict[str, bool]: A dictionary mapping each claim to its truthfulness.
        """
        results = {}
        for claim in claims:
            results[claim] = self.check_fact(claim)
        return results

# Example usage
if __name__ == "__main__":
    fact_checker = FactChecker()
    
    # Adding some facts
    fact_checker.add_fact("Eden is an AI", True)
    fact_checker.add_fact("Python was created in 1990s", True)
    fact_checker.add_fact("Water boils at 100 degrees Celsius at sea level", True)
    fact_checker.add_fact("AI can solve any problem", False)

    # Checking statements
    claims_to_check = [
        "Eden is an AI",
        "Python was created in the 1980s",
        "AI can predict weather patterns",
        "Water freezes at -273 degrees Celsius"
    ]
    
    results = fact_checker.check_statements(claims_to_check)
    for claim, truthfulness in results.items():
        print(f"{claim}: {truthfulness}")
```

This Python code defines a `FactChecker` class that can add and check the truth of claims or statements. It includes methods to add new facts, check individual facts, and verify multiple claims at once. The example usage demonstrates how to use this class to manage and query a set of known facts.