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Proof step 1 from proof datanode-pagesize (conclusion)

⊦ datakey(m, n) ∈ ri ∧ ubifs-cons(fs, ri, ro, fi, fo, log) → # fs[ri[datakey(m, n)]].data = VFS_PAGE_SIZE

System applied rule normalize

And obtained the following new goals

Proof step 2:
ubifs-cons(fs, ri, ro, fi, fo, log), datakey(m, n) ∈ ri ⊦ # fs[ri[datakey(m, n)]].data = VFS_PAGE_SIZE

Rule argument

Additional information