BobTHJ wrote:
I forsee problems. I assign a chaotic number 10000 to a proposal. Ten years from now, the Neo-proposal Promoter assigns number 10000 to a proposal, blissfully unaware that the number was already assigned 10 years ago.
That's what (e) is for. But even if we do make a mistake, the alleged numbering has arguably accomplished its goal, despite its invalidity: namely, allowing the proposal to be referred to by number (or, in this case, alleged number). The situation breaks down into two cases: 1) The Promotor invalidly assigns number 10000, someone remembers the previous number 10000 and promptly points it out. Then everyone knows that the future proposal isn't 10000 after all, and the Promotor can perform a valid assignment. 2) The Promotor invalidly assigns number 10000, no one remembers the previous number 10000. Then any references to "Proposal 10000" around that time constitute unambiguous references to "the Proposal that the Promotor recently attempted to number 10000". (They couldn't reasonably be references to the old Proposal 10000, because then we would be in case #1.)