The validity of the authorization and issuance of any revenue bonds or revenue bond anticipation notes by the board is not dependent on nor affected in any way by:
(a) Proceedings taken by the board for the acquisition, construction or completion of any project or any part thereof.
(b) Any contracts made by the board in connection with the acquisition, construction or completion of any project.
(c) The failure to complete any project for which bonds or notes are authorized to be issued.