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Proof step 7 from proof crash-neutral-add-log-leb (previous step)

# lpt = # avol, plog = plog0, ebm-vol-inv(avol), avol ⊆ avol0 ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; if err = ESUCCESS then plog := plog + m0 '⟩ (plog0 = plog)

User applied rule exists right

And obtained the following new goals

Proof step 8:
# lpt = # avol, plog = plog0, ebm-vol-inv(avol), avol ⊆ avol0 ⊦ (⌊EIO⌋ ∨ EIO = ESUCCESS) ∧ ⟨err := EIO; if err = ESUCCESS then plog := plog + m0 '⟩ (plog0 = plog)

Rule argument

pos: right 1 terms: EIO abort: F discard: T computed: T

Additional information

Used terms: EIO