add assertion and use it to simplify proof
unfold before intro
adapt proof to additional assertion on separation
adapt proof og GHI_equal to new assertion
adapt proof of property DEF_equal
adapt and simplify proof of GHI_equal
save proof attempt for ABC_DEF_equal
add coq proof for ABC_keep
prove ABC_GHI with admit
reorder intro Bit64
remove substitutions in proofs of Bitwalker_Peek
remove substitutions in proof of Bitwalker_Poke
deactivate -wp-split
add another assertion with admit
reomove old proofs
add assertion DEF_
do not use macro in LeftBitInArray
try more options
start adding two labels to Unchanged predicates
adapt proofs to two-label form of predicate