About formalising (i) I guess it's about accepting everything that isn't a meta-token, I don't remember godel incompleteness theorems sufficently to be precise

About formalising (i) I guess it's about accepting everything that isn't a meta-token, I don't remember godel incompleteness theorems sufficently to be precise about it, anyway the useful list would be the wikipedia list of independent statements since most of them are not contrived (although very abstract). So yes my question can be specialized as to how to achieve maximum coverage of the wikipedia page. Otherwise, great comment and it's been a while since I hadn't heard the term reverse mathematics!