Arguments InA {A}{eqA} x _.
Arguments AMap.In {elt} x m.

Lemma gsolockSet_rem2: forall ds b ofs ofs',
lr_valid (lockRes ds) ->
~ Intv.In ofs' (ofs, ofs + lksize.LKSIZE)%Z ->
(lockSet (remLockSet ds (b, ofs))) !! b ofs' =
(lockSet ds)  !! b ofs'.