75. (1) Subject to this Constitution –(a) the procedure of Parliament shall be regulated by rules of procedure made by it, and until such rules are made shall be regulated by rules of procedure made by the President;(b) a decision in Parliament shall be taken by a majority of the votes of the members present and voting, but the person presiding shall not vote except when there is an equality of votes, in which case he shall exercise a casting vote;(c) no proceeding in Parliament shall be invalid by reason only that there is a vacancy in the membership thereof or that a person who was not entitled to do so was present at, or voted or otherwise participated in, the proceeding. (2) If at any time during which Parliament is in session the attention of the person presiding is drawn to the fact that the number of members present is less than sixty, he shall either suspend the meeting until at least sixty members are present, or adjourn it.