Inter-universal Teichmuller Theory I ------------------------------------ ・Corrected 11 instances of a misprint (fraktur D ---> calligraphic D) in Proposition 6.5, (i), (ii) ・Corrected a misprint (an unnecessary semicolon) in the final display of Proposition 6.5, (ii) Inter-universal Teichmuller Theory II ------------------------------------- ・Corrected 3 instances of a misprint (fraktur D ---> calligraphic D) in Remark 2.6.2, (i), (a), (b) ・Updated the Acknowledgements Inter-universal Teichmuller Theory III -------------------------------------- ・Added a supplementary reference to Step (vi) of the proof of Corollary 3.12 to the discussion  immediately following the first display of Remark 2.2.2, (i) ・Added item (iii) to Remark 2.2.2, as well as a reference to this item (iii) in Remark 2.2.2, (i) ・Corrected a misprint (fraktur F ---> calligraphic F) in the final sentence of Definition 3.8, (i) ・Corrected a misprint in the final subscript of the first display of Theorem 3.11, (i) ・Updated the Acknowledgements