premise: 6. Except as aforementioned, the receiving Party shall have no obligations or restrictions with respect to any Proprietary Information which that receiving Party can prove: (a) has come into the public domain prior to, or after the disclosure thereof and in such case through no wrongful act of that receiving Party, or (b) is already known to the receiving Party, as evidenced by written documentation in the files of the receiving Party, or (c) has been lawfully received from a third party without restrictions or breach of this Agreement, or (d) has been or is published without violation of this Agreement, or (e) is independently developed in good faith by an employee or employees of that receiving Party who did not have access to the Proprietary Information, or