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Proof step 19 from proof refsize-cons-crash (previous step)

(∅)[n] = groupblock(gndx0, lax0, m), n ∈ ginval, fi.lebs ⊆ dom gstore0, ∀ n. n ∈ dom gstore0 ∪ elems nx ↔ n ∈ dom gstore ∪ ginval ⊦ # ginval = 0, ginval = ∅, m = 0, n ∈ nx, n ∈ gstore0

User applied rule all left

And obtained the following new goals

Proof step 20:
n ∈ dom gstore0 ∪ elems nx ↔ n ∈ dom gstore ∪ ginval, (∅)[n] = groupblock(gndx0, lax0, m), n ∈ ginval, fi.lebs ⊆ dom gstore0 ⊦ # ginval = 0, ginval = ∅, m = 0, n ∈ gstore0, n ∈ nx

Rule argument

pos: left 4 terms: n abort: F discard: T computed: F

Additional information

Used terms: n