Changes

Changes from Mercurial (hg https://foss.heptapod.net/isa-afp/afp-devel/ default)

Summary

  1. added two lemmas to relational chains
Changeset 12895:1e9471f837af by blanchet:
added two lemmas to relational chains
The file was modifiedthys/Ordered_Resolution_Prover/Lazy_List_Chain.thy