[Imprint][Data Privacy Statement][E-Mail]

View long theorem info. View the proof. Back to main index. View the specification. View theorem base summary, View theorem base listing, the used properties by spec, the dependency list, the symbol table,

Proof step 59 from proof readpage-prepost (previous step)

# buf = VFS_PAGE_SIZE, ((m0 =>mkfile(n0, md, m, σ) * F))(files), afs-cons(dirs, files), m0 ∈ files ⊦ [fail#(; ; err)] (err = ESUCCESS ∧ ⌜buf⌝ = (σ from n * VFS_PAGE_SIZE) to VFS_PAGE_SIZE ∨ ⌊err⌋ )

Heuristic weak unfold applied rule call right

And obtained the following new goals

Proof step 60:
# buf = VFS_PAGE_SIZE, ((m0 =>mkfile(n0, md, m, σ) * F))(files), afs-cons(dirs, files), m0 ∈ files ⊦ [choose err0 with ⌊err0⌋ in err := err0] (err = ESUCCESS ∧ ⌜buf⌝ = (σ from n * VFS_PAGE_SIZE) to VFS_PAGE_SIZE ∨ ⌊err⌋ )

Rule argument

pos: right 1

Additional information

Used simplifier rules: fail#(; ; ERR){choose ERR0 with ⌊ERR0⌋ in ERR := ERR0};