Changes from Mercurial (hg https://foss.heptapod.net/isa-afp/afp-devel/ default)
Summary
- adjust proof after merge to development version
- merge from AFP 2024 + rerun sitegen
- use addr_bitsize instead of hard-coded number 32
- merge from afp-2023
- Sitegen for PNT_with_Remainder
- New entry PNT_with_Remainder, including some corrections to root.tex, etc.
- sitegen for Substitutions_Lambda_Free
- new entry Substitutions_Lambda_Free