C. P. and J.I.O. warrant my gratitude for catching errors. Platonizer that I am, my mind goes directly to the trans-sensible sense and is appropriately inattentive to its mere material embodiment. I try to catch all my typographical errors but I am regularly surprised at how many I miss.
I probably missed one in the line just written.
And damned if I didn't find one, after writing the last sentence, a typo now duly corrected.