human
how to check if duplicate names exist.
assistant
Here is a Python program to check if duplicate names exist

import re

def check_duplicate_names(names):
    """
        Check if duplicate names exist
    :param names:
    :return:
    """
    return len(set(names)) == len(names)

# Enter the names
names = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]

# Calling the function
print((check_duplicate_names(names)))

#Example Output
# True

#Remember to inspect code for bugs.