On 10/19/2013 1:04 PM, Nam Nguyen wrote: > On 19/10/2013 11:57 AM, Peter Percival wrote: >> Nam Nguyen wrote: >> >>> What would you find confusing on one of the invalidity forms (for meta >>> statements) I've just reminded Peter in my recent post to him? >> >> I've raised some questions about one. And there's another is there? (Or >> are others? Crumbs.) > > Nice try, Peter. But this is somewhat a dis-genuine response from you. > > Why don't you first comment about my definition of "impossible to know" > in this context? > > (It has to do with a collection of truths in meta level). >
No. It has to do with *available* *definitions* which have been asked for an *not* *given*.
This is because your "collection of truths in meta level" is dependent upon "all available definitions" and "all permissible reasoning methods".