"""Create logic_validator
Generated by Phi-Octopus Eden
2025-11-08 17:32:06.067255
"""

```python
from typing import List, Union

class LogicValidator:
    """
    A class designed to validate logical expressions given as strings.
    
    Attributes:
        expressions (List[str]): List of string representations of logical expressions.
        
    Methods:
        __validate_expression: Validates a single expression.
        validate_expressions: Validates multiple expressions and returns True if all are valid, False otherwise.
    """
    
    def __validate_expression(self, expression: str) -> bool:
        """
        Validates a single logical expression.

        Args:
            expression (str): A string representing a logical expression with AND, OR, NOT operators.

        Returns:
            bool: True if the expression is valid, False otherwise.
        """
        operator_stack = []
        for char in expression:
            if char.isalpha():  # Check if character is an alphabet letter
                continue
            elif char in ['(', ')']:
                if char == '(':
                    operator_stack.append(char)
                else:  # char == ')'
                    if not operator_stack or operator_stack[-1] != '(':
                        return False
                    operator_stack.pop()
            elif char in ['AND', 'OR', 'NOT']:  # Check for logical operators
                if len(operator_stack) > 0 and (operator_stack[-1] in ['AND', 'OR']):
                    return False
                operator_stack.append(char)
        return not operator_stack

    def validate_expressions(self, expressions: List[str]) -> bool:
        """
        Validates multiple logical expressions.

        Args:
            expressions (List[str]): A list of strings representing logical expressions with AND, OR, NOT operators.

        Returns:
            bool: True if all expressions are valid, False otherwise.
        """
        return all([self.__validate_expression(expr) for expr in expressions])
    
# Example Usage
if __name__ == "__main__":
    validator = LogicValidator()
    expressions = [
        "A AND B OR C",
        "(A NOT B) OR (C AND D)",
        "A AND (B OR C)"
    ]
    print(validator.validate_expressions(expressions))  # Should return True
```