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Proof step 8 from proof refine-get-volume-size (previous step)

ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), default-volid ∈ avols ⊦ ⟨ebm_avol_get_volume_size#(abs(avols[default-volid]); ; n0)⟩ (# avols[default-volid] = n0)

Heuristic unfold applied rule call right

And obtained the following new goals

Proof step 9:
avol = abs(avols[default-volid]), ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), default-volid ∈ avols ⊦ ⟨n := # avol⟩ (# avols[default-volid] = n)

Rule argument

pos: right 1

Additional information

Used simplifier rules: ebm_avol_get_volume_size#(AVOL; ; N){N := # AVOL};