def check_last(claimset_list):
    """
    Checks claims end with a claim number = length of list.

    :param claimset_list: set of (number, text) tuples for claims.
    :type claimset_list: tuples (int, str)
    :return: true if last claim = length of claims; false if not
    """
    try:
        if claimset_list[-1][0] == len(claimset_list):
            return True
        else:
            return False
    except:
        return False
