1.1 --- a/TODO.md	Mon Jun 21 22:08:01 2021 +0200
     1.2 +++ b/TODO.md	Sun Jul 18 18:15:27 2021 +0200
     1.3 @@ -63,4 +63,18 @@
     1.4      - sometimes this requires to use proper definitional mechanisms (e.g. 'primrec', 'fun');
     1.5      - a few "hard" cases will remain, to be reconsidered eventually (e.g. differentiation);
     1.6  
     1.7 +* WN: eliminate ThmC.numerals_to_Free, use existing Isabelle/HOL representation, DONE partially;
     1.8 +  + TOODOO are exclusive for this changeset; most follow from TOODOO.1
     1.9 +  + TOODOO.1: exception TYPE raised by Skip_Proof.make_thm 
    1.10 +  + ? how to do algebraic operations on numerals ? Presburger ? simplifier ?
    1.11 +  + clarify role of type "real" vs. "float" (see theory "HOL-Library.Float");
    1.12 +
    1.13 +* WN: DONE cleanup remaining ^^^ in comments (but sometimes it is just ASCII art), partially;
    1.14 +      Left ^^^ in doc-isac (old master-theses, etc: "x^^^#2 + #8" ... # are left, too)
    1.15 +      Left "ASCII art" in case of indicating comments pointing at facts ABOVE.
    1.16 +
    1.17  * WN: "fun pr_ord" is not required if used with @{make_string}, @{print}, @{print tracing};
    1.18 +      ???
    1.19 +
    1.20 +* WN: reduce the number of TermC.parse*;
    1.21 +    - one or two variants should suffice.