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Proof step 2 from proof afs-cons-getpage-size (previous step)

files[ino] = mkfile(m, md, m0, content), afs-cons(dirs, files), ino ∈ files ⊦ # getpage(n, content) = VFS_PAGE_SIZE

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
files[ino] = mkfile(m, md, # links(ino, dirs), content), afs-cons(dirs, files), ino ∈ files ⊦ # (n ∈ content ⊃ content[n];zeropage) = VFS_PAGE_SIZE

Rule argument

Additional information

Used simplifier rules: getpage: ⊦ getpage(n, content) = (n ∈ content ⊃ content[n];zeropage);%afs-cons-file-nlink: ⊦ afs-cons(dirs, files) ∧ ino ∈ files ∧ files[ino] = mkfile(m, md, n, content) → # links(ino, dirs) = n; (forward) from specification afs-base