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Proof step 49 from proof readpage-prepost (previous step)

# buf = VFS_PAGE_SIZE, files[m0] = mkfile(n0, md, # links(m0, dirs), content), n1 < VFS_PAGE_SIZE, n1 < # zeropage, F(files -- m0), afs-cons(dirs, files), m0 ∈ files ⊦ (zeropage)[n1] = (content.stream from n * VFS_PAGE_SIZE)[n1], n ∈ content

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 50:
# buf = VFS_PAGE_SIZE, files[m0] = mkfile(n0, md, # links(m0, dirs), content), n1 < VFS_PAGE_SIZE, F(files -- m0), afs-cons(dirs, files), m0 ∈ files ⊦ zero = (content.stream from n * VFS_PAGE_SIZE)[n1], n ∈ content

Rule argument

Additional information

Used simplifier rules: ⊦ # zeropage = VFS_PAGE_SIZE; (s)% ⊦ n < VFS_PAGE_SIZE → (zeropage)[n] = zero; (s)