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Proof step 12 from proof refine-sync-device (previous step)

ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), default-volid ∈ avols, ⌊err1⌋ ∨ err1 = ESUCCESS ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0⟩ (err1 = err)

User applied rule exists right

And obtained the following new goals

Proof step 13:
ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), default-volid ∈ avols, ⌊err1⌋ ∨ err1 = ESUCCESS ⊦ (⌊err1⌋ ∨ err1 = ESUCCESS) ∧ ⟨err := err1⟩ (err1 = err)

Rule argument

pos: right 1 terms: err1 abort: F discard: T computed: T

Additional information

Used terms: err1