Proceedings of meetings to be good and valid until contrary is proved

proved. - Until the contrary is proved, every meeting of the City Corporation or of a Standing Committee in respect of the proceedings whereof a minute has been made and signed in accordance with this Act or the rules shall be deemed to have been duly convened and held and to be free from all defects and irregularities, and all the members of the meeting shall be deemed to have been duly qualified; and where the proceedings are proceedings of a Standing Committee such Standing Committee shall be deemed to have been duly constituted and to have had power to deal with the matters referred to in the minute.