Thanks- I haven't read that paper - or, to be fair, any of the MYCIN papers. I only knew this from ... word of mouth, I think? Let's put it down to "lore". I'l

Thanks- I haven't read that paper - or, to be fair, any of the MYCIN papers. I only knew this from ... word of mouth, I think? Let's put it down to "lore". I'll read the paper and revise my knowledge- thanks again!