Inter-universal Teichmuller Theory I ------------------------------------ ・Corrected a misprint ("notion an" ---> "notion of an") in the discussion preceding Fig. I1.2 ・Slightly modified the fourth, fifth, and sixth displays of \S I4 ・Corrected a misprint ("associated to number" ---> "associated to a number") in the discussion of  "disentangling/dismantling" in \S I4 ・Corrected a misprint (second "X" ---> "C") in Remark 1.1.1 ・Corrected a misprint ("rough speaking" ---> "roughly speaking") in the discussion at the beginning  of \S 2 ・Added a supplementary explanatory phrase to the proof of Lemma 2.7, (i) ・Added some supplementary explanatory phrases concerning the notation with superscripts "bad", "good"  in Definition 3.1, (b) ・Added a supplementary explanatory phrase ("residue characteristics of the") to Definition 3.1, (c) ・Slightly modified the first of the three displayed conditions in the definition of a $\kappa$-coric  function in Remark 3.1.7, (i), as well as the first consequence of these three display conditions  that is discussed at the end of Remark 3.1.7, (i) ・Replaced the indefinite article "a" that precedes the various "infinity" versions of the term "$\kappa$-coric"  by the indefninite article "an" (7 instances) Inter-universal Teichmuller Theory III -------------------------------------- ・Deleted the subscript "\triangle" from the display in the definition of the "coric data" in Corollary 2.3 ・Added the word "nonconstant" to the discussion of $\kappa$-coric fuctions in Remark 2.3.3, (vi)